US20050041894A1 - Plastic gusset bag with closure and cut-out handle method - Google Patents
Plastic gusset bag with closure and cut-out handle method Download PDFInfo
- Publication number
- US20050041894A1 US20050041894A1 US10/782,104 US78210404A US2005041894A1 US 20050041894 A1 US20050041894 A1 US 20050041894A1 US 78210404 A US78210404 A US 78210404A US 2005041894 A1 US2005041894 A1 US 2005041894A1
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- US
- United States
- Prior art keywords
- bag
- gussetted
- closure
- seal
- gussets
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D33/00—Details of, or accessories for, sacks or bags
- B65D33/06—Handles
- B65D33/08—Hand holes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D31/00—Bags or like containers made of paper and having structural provision for thickness of contents
- B65D31/10—Bags or like containers made of paper and having structural provision for thickness of contents with gusseted sides
Definitions
- the present invention relates to the closure of open top, thin plastic, gussetted bags including a “square bottom” plastic bag, “T” shirt bag and any top opening bag with side gussets formed of thin plastic material.
- Plastic gussetted “square bottom” or “flat bottom” bags and regular gussetted bags have supplanted paper bags for use in super markets, retail establishments, and other establishments. These bags utilize the entire space of the plastic bag, stand up right by itself and is self-supporting so that it makes loading and unloading the bag easier.
- This bag may be used to hold products in markets, such as, food, deli counter operations, dog food and the like as well as boxed and canned goods. While made of flexible plastic material may be made of sturdy and strong, i.e., heavy wall construction that the filled bag may be conveniently carried. It would also be extremely beneficial to provide means for automated closing the open top after the bag is filled.
- a gussetted bag of the type shown in my earlier patents containing a tubular sleeve having an open top, a closed bottom wall, a front and back faces and a pair of opposing side walls connecting the front and back faces is improved.
- the side walls are formed with at least one fold creating in the side walls at least one gusset allowing the front and back faces to extend from each other.
- the gussets are sealed unitarily at the bottom ends of the bottom wall, sealed through and through along their top edges of the the front and back faces inwardly respective from the side wall.
- the “square bottom” bag takes on a triangular lengthwide shape normally biased closed at the top but easily openable for maximum full and discharge of the interior of the bag.
- FIG. 1 is a series perspective views showing the construction of a flat bottom tubular bag
- FIG. 2 is perspectal view of a flat bottom bag having the gusset construction of the present invention
- FIG. 3 is a view of the bag invention, on its side,
- FIG. 2 is a view showing the discharge of goods from the interior thereof.
- a typical endless roll plastic of tubular sleeve construction 10 used to form the initial bag 12 to which the invention is applied to.
- step A a portion of the endless tubular sleeve is shaped in accordance with the afore mentioned patents, to which reference can be made as if more fully set forth.
- the sleeve is cut in Step B, to have a rectangle shape with a transverse cross section having a pair of opposing faces 14 and a pair of side walls 16 .
- Each side wall 16 is formed with at least a one longitudinal gussets 18 although two pair are preferred.
- the gussets 18 are folded inwardly and the tubular sleeve flattened by pressing the the opposing faces 14 in together.
- Step C the plastic bag is opened and a “former” or mandrel is moved into the bag 14 so as to “square off” the bottom to make a “flat bottom” 20 .
- bottom seals 22 are applied to seal the bottom to the side walls 16 making the “square bottom” rigid.
- the bag is then sealed with a seam 24 from side wall to side wall at the bottom with a heat sealing mechanism making the “T” shirt bag leaving the top open ended as at 26 bag.
- the present invention provides the top edge 26 with a closure seal 46 applied to limit of the length of gusset sides 18 .
- the reduced gussets sides 18 are made as small as as possible without interfering with the required size of the bag and integrity of the “square bottom” or “flat bottom” 20 .
- the number of seals 30 on each side gusset 18 can be selected as desired along with the longitudinal seal 48 .
- At least one diagonal seal 40 is made at the bottom end of the longitudinal seal 48 on each side of the bag. These diagonal seals 40 made at the end of the longitudinal seal 48 reinforce the longitudinal seal and enable the easy flow of goods out of the bag. (See FIG. 3 )
- the entire upper portion of the bag containing the cut-out handle and zipper closure is heat sealed to the upper portion of lower bag.
- the additional block seal 50 is to prevent the zipper from opening past the gussetted sealed upper portions of the bag itself.
- FIGS. 2 & 3 all gusset members are sealed together. All gusset sides are pressed and all seals are applied including the long longitudinal seal and diagonal seal are applied at one time. The seals are made on both sides of the bag.
- FIG. 2 shows the smaller gussetted sides 18 to allow for a larger opening to load and unload any material in the bag. Note the reduced gusset side size 10 is to allow for maximum opening of the bag without destroying the integrity of the gussetted “square bottom” “flat bottom” bag.
- FIGS. 2 and 3 clearly show the small slit 42 made in the bag to allow air to escape from the bag at time of loading, as well as the zipper closure to the bag along with a cut-out handle.
- the block seal 50 on the zipper portion of the closure is also clearly shown.
- a “flat bottom” plastic bag be constructed of any desired size and for any selected use and function.
- the plastic film from which the bag is constructed can be transparent or opaque to allow for identifying and merchandising material. Seen in FIGS. 2 and 3 , a translucent film having a transparent window 44 is shown.
- the resultant bag has a triangular tubular shape. The “flat bottom” being larger in girth through the body of the bag, thereby allowing the bag to stand upright with the top distended to allow access and egress of material Similarly, the bag can be placed on its side as seen in FIG. 3 .
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bag Frames (AREA)
Abstract
A tubular sleeve having an open top, a closed bottom wall, a front and back faces and a pair of opposing side walls connecting the front and back faces. The side walls are formed with at least one gusset allowing the front and back faces to extend from each other. The gussets are sealed unitarily at the bottom ends to form the bottom wall. The “square bottom” bag takes on a triangular lengthwise shape normally biased closed at the top but easily openable for maximum filling and discharge of the interior of the bag.
Description
- The present application contains disclosures found in applicant's earlier in U.S. Pat. No. 3,988,970, U.S. Pat. No. 3,916,770 and U.S. Pat. No. 4,230,300 issued a “square bottom” or “flat bottom” plastic bag and Provisional Patent Application No. 601/365028 dated Mar. 18, 2002 and Disclosure Documents #492644 dated Apr. 23, 2001 and #492645 dated Apr. 23, 2001.
- The present invention relates to the closure of open top, thin plastic, gussetted bags including a “square bottom” plastic bag, “T” shirt bag and any top opening bag with side gussets formed of thin plastic material.
- Plastic gussetted “square bottom” or “flat bottom” bags and regular gussetted bags have supplanted paper bags for use in super markets, retail establishments, and other establishments. These bags utilize the entire space of the plastic bag, stand up right by itself and is self-supporting so that it makes loading and unloading the bag easier.
- This heretofore not available new closure will enable such plastic bags to have many uses apparent to the user and the reader of this application.
- This bag may be used to hold products in markets, such as, food, deli counter operations, dog food and the like as well as boxed and canned goods. While made of flexible plastic material may be made of sturdy and strong, i.e., heavy wall construction that the filled bag may be conveniently carried. It would also be extremely beneficial to provide means for automated closing the open top after the bag is filled.
- It is the object of this present invention to close a “flat bottom” or “square bottom” gussetted bag, after being filled, at the upper edge of the bag while allowing a maximum opening for filling and discharge of the bag.
- Another object of this present invention is to provide the bag for use for liquids, solids, semi solids, frozen and defrosted items while maintaining the integrity of the self-standing bottom plastic gussetted sack or bag.
- It is another object to provide a “flat bottom” bag with automatic top closure having a carrying handle. The objects as well as other objects and advantages will be obvious from the following disclosures.
- In my prior patents, U.S. Pat. Nos. 3,988,970, 3,916,770 and 4,230,300, I disclosed plastic bags and their manufacture in which a flat bottom has been formed. The “flat” or “square bottom” bag is formed from a tubular sleeve having gussets on each side. A long transverse seal is applied to the bottom of the tube to form a bag. An internal opening mechanism is provided to open and “square off” the bottom Two bottom seals are applied to reinforce the bottom of the bag. Further, square bottom serve to allow the bag to be neatly folded for stacking and shipping. The bags shown in these patents also have side gussetts similarly designed to allow folding and stacking for shipping.
- According to the present invention a gussetted bag of the type shown in my earlier patents containing a tubular sleeve having an open top, a closed bottom wall, a front and back faces and a pair of opposing side walls connecting the front and back faces is improved. The side walls are formed with at least one fold creating in the side walls at least one gusset allowing the front and back faces to extend from each other. The gussets are sealed unitarily at the bottom ends of the bottom wall, sealed through and through along their top edges of the the front and back faces inwardly respective from the side wall. Then, as will be seen the “square bottom” bag takes on a triangular lengthwide shape normally biased closed at the top but easily openable for maximum full and discharge of the interior of the bag.
- Full details of the present invention are set forth in the following disclosure and shown in the accompanying drawings.
- In the drawings:
-
FIG. 1 is a series perspective views showing the construction of a flat bottom tubular bag, -
FIG. 2 is perspectal view of a flat bottom bag having the gusset construction of the present invention, -
FIG. 3 is a view of the bag invention, on its side, -
FIG. 2 is a view showing the discharge of goods from the interior thereof. - Seen in
FIG. 1 , a typical endless roll plastic oftubular sleeve construction 10 used to form theinitial bag 12 to which the invention is applied to. In step A, a portion of the endless tubular sleeve is shaped in accordance with the afore mentioned patents, to which reference can be made as if more fully set forth. The sleeve is cut in Step B, to have a rectangle shape with a transverse cross section having a pair ofopposing faces 14 and a pair ofside walls 16. Eachside wall 16 is formed with at least a onelongitudinal gussets 18 although two pair are preferred. Thegussets 18 are folded inwardly and the tubular sleeve flattened by pressing the theopposing faces 14 in together. Then, in Step C, the plastic bag is opened and a “former” or mandrel is moved into thebag 14 so as to “square off” the bottom to make a “flat bottom” 20. In Step D, bottom seals 22 (one on each side of the bottom) are applied to seal the bottom to theside walls 16 making the “square bottom” rigid. As seen in Step E and F, the bag is then sealed with aseam 24 from side wall to side wall at the bottom with a heat sealing mechanism making the “T” shirt bag leaving the top open ended as at 26 bag. - Turning to
FIGS. 2 and 3 , the present invention provides thetop edge 26 with aclosure seal 46 applied to limit of the length ofgusset sides 18. The reducedgussets sides 18 are made as small as as possible without interfering with the required size of the bag and integrity of the “square bottom” or “flat bottom” 20. After the gusset sealing is completed all the gusset faces are pressed together and sealed at the top end of the bag with at least one or twoband seals 30 incl,udinglongitudinal seal 48 sealing the pressed gusset faces completely through the film or sheet of plastic. - The
top edge 26 of each face may be reinforced withstay 32 of bendable material, such as a corset stay so the bag automatically closes. Also aband 34 integral with the front andrear faces 14 to extend upward longitudinal seal extends from the gussets upward therefrom anopening 36 is fashioned in theband 34 establishing ahandle 38. Below the handle, along the top of the bag itself, a zipper orother closure device 46 may be placed, so that the contents of the bag can be locked and held for shipment. - The number of
seals 30 on eachside gusset 18 can be selected as desired along with thelongitudinal seal 48. At least onediagonal seal 40 is made at the bottom end of thelongitudinal seal 48 on each side of the bag. Thesediagonal seals 40 made at the end of thelongitudinal seal 48 reinforce the longitudinal seal and enable the easy flow of goods out of the bag. (SeeFIG. 3 ) - The
block seals 30 are made near the top of the bag to insure that the bag is not torn when filling or emptying out. These block seals also allow the user a place or location to grasp the bag at time of opening, closing the bag and discharging the contents at time of unloading bags. Block seals are applied simultaneously when the long longitudinal seal and diagonal seals are made through all the side gussets. As a matter of fact, all foregoing seals (30,40,48) can be made at one time. Once the gusset seals, block seals, longitudual and diagonal seals are in place, the band and a zipper closure with cut-out handle maybe formed to the upper portion of the bag separately by sealing a portion of the flap of the zipper closure to the front and back of the new construction sealed bag. - If made separately, the entire upper portion of the bag containing the cut-out handle and zipper closure is heat sealed to the upper portion of lower bag. The
additional block seal 50 is to prevent the zipper from opening past the gussetted sealed upper portions of the bag itself. - Further a
small slit 42 is made in the bag at a location below the top edge closure. This will enable the easy flow of material in and out of the bag allow air to also blow out of bag. - As seen in detail in
FIGS. 2 & 3 , all gusset members are sealed together. All gusset sides are pressed and all seals are applied including the long longitudinal seal and diagonal seal are applied at one time. The seals are made on both sides of the bag.FIG. 2 shows the smallergussetted sides 18 to allow for a larger opening to load and unload any material in the bag. Note the reducedgusset side size 10 is to allow for maximum opening of the bag without destroying the integrity of the gussetted “square bottom” “flat bottom” bag. -
FIGS. 2 and 3 clearly show thesmall slit 42 made in the bag to allow air to escape from the bag at time of loading, as well as the zipper closure to the bag along with a cut-out handle. Theblock seal 50 on the zipper portion of the closure is also clearly shown. - As seen from the foregoing, a “flat bottom” plastic bag be constructed of any desired size and for any selected use and function. The plastic film from which the bag is constructed can be transparent or opaque to allow for identifying and merchandising material. Seen in
FIGS. 2 and 3 , a translucent film having atransparent window 44 is shown. The resultant bag has a triangular tubular shape. The “flat bottom” being larger in girth through the body of the bag, thereby allowing the bag to stand upright with the top distended to allow access and egress of material Similarly, the bag can be placed on its side as seen inFIG. 3 . - Furthermore, the bag allows the addition of a handle and a locking zipper or other closure device. Thereby, the resultant bag may be used as a handbag, pocket book or satchel tote.
- Thus the scope of the disclosure should not be seen as limiting this invention should be derived only from the appended claims.
Claims (18)
1) A gussetted bag comprising a tubular sleeve having an open top, a closed bottom, a pair of opposing front faces and a pair of opposing side walls, with gussets connecting said frontal faces, said bag being unitarily formed with at least one additional seal on each top edge of the bag, sealing the gusset members through and through on each side of the bag.
2) The bag according to claim 1 having at least one one block seal on each side of the bag.
3) The bag according to claim 1 having at least one diagonal seal on each side of the bag.
4) The bag according to claim 1 having at least one longitudinal seal on each side of the above.
5) The bag according to claim 1 having smaller reduced gusset sides on both sides of bag.
6) The bag according to claim 1 having a zipper closure or other closure device and a cut-out handle.
7) The bag according to claim 1 having slit near top of body of bag and below zipper closure to vent air out of bag.
8) The bag according to claim 1 having block seal on zipper closure to restrict zipper closure from passing sealed portion of gussets on both sides of bag.
9) The method of making a gussetted bag comprising of steps of forming at least one additional seal on top edge of the gusssetted portion of bag sealing the gussets through and through the film.
10) The method according to claim 9 including at least one long longitudinal seal sealing all gussets to reinforce top seals and top closures.
11) The method according to claim 9 including at least one diagonal seal sealing all gusset film to reinforce the closure and making for easy discharge of the contents.
12) The method according to claim 9 including block sealed area directly below the top of sealed gussets.
13) The method according to claim 9 including at least one or more small sized or reduced size gussets on each side of bag to allow for easy discharge of contents without compromising the integrity, shape and characteristic of the gussetted “square bottom” bag or regular gussetted bag.
14) The method according to claim 9 including at least one additional seal on top edge of bag, sealing gusssets through the film material.
15) The method according to claim 9 including gussetted plastic bag with zipper closure or other closure device.
16) The method according to claim 9 including a cut-out handle over a zipper closure on a gussetted bag.
17) The method according to claim 9 including a slit or small opening near the top of body of bag and below zipper closure.
18) The method according to claim 9 including the step of block sealing and reducing the overall size of the zipper closure for uniformity with the sealed gussetted side so zipper closure does not extend past the sealed gussetted sides.
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US10/782,104 US20050041894A1 (en) | 2002-12-19 | 2004-02-19 | Plastic gusset bag with closure and cut-out handle method |
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US10/322,545 US7014363B2 (en) | 2002-12-19 | 2002-12-19 | Plastic gusset bag with closure and cut-out handle |
US10/782,104 US20050041894A1 (en) | 2002-12-19 | 2004-02-19 | Plastic gusset bag with closure and cut-out handle method |
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US10/322,545 Division US7014363B2 (en) | 2002-12-19 | 2002-12-19 | Plastic gusset bag with closure and cut-out handle |
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US20050041894A1 true US20050041894A1 (en) | 2005-02-24 |
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US10/322,545 Expired - Fee Related US7014363B2 (en) | 2002-12-19 | 2002-12-19 | Plastic gusset bag with closure and cut-out handle |
US10/782,104 Abandoned US20050041894A1 (en) | 2002-12-19 | 2004-02-19 | Plastic gusset bag with closure and cut-out handle method |
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US10/322,545 Expired - Fee Related US7014363B2 (en) | 2002-12-19 | 2002-12-19 | Plastic gusset bag with closure and cut-out handle |
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US20060045390A1 (en) * | 2004-08-27 | 2006-03-02 | Sill Jonathan D | Plastic bag with unitary handle and closure member |
US20060108375A1 (en) * | 2004-11-19 | 2006-05-25 | Fres-Co System Usa, Inc. | Flexible package having a fitment pour spout and a reclosable mouth using a zipper type closure |
US20070183692A1 (en) * | 2006-02-08 | 2007-08-09 | Pawloski James C | Reclosable pouch and zipper for a reclosable pouch |
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US7427161B2 (en) * | 2004-08-27 | 2008-09-23 | Inno-Pak | Plastic bag with unitary handle and closure member |
US20060045390A1 (en) * | 2004-08-27 | 2006-03-02 | Sill Jonathan D | Plastic bag with unitary handle and closure member |
US20060108375A1 (en) * | 2004-11-19 | 2006-05-25 | Fres-Co System Usa, Inc. | Flexible package having a fitment pour spout and a reclosable mouth using a zipper type closure |
US7055720B1 (en) * | 2004-11-19 | 2006-06-06 | Fres-Co System Usa, Inc. | Flexible package having a fitment pour spout and a reclosable mouth using a zipper type closure |
US9011003B2 (en) | 2006-02-08 | 2015-04-21 | S.C. Johnson Home Storage, Inc. | Reclosable pouch and zipper for a reclosable pouch |
US20070183692A1 (en) * | 2006-02-08 | 2007-08-09 | Pawloski James C | Reclosable pouch and zipper for a reclosable pouch |
EP1834889A1 (en) * | 2006-03-14 | 2007-09-19 | Mondi Packaging AG | Packaging with lateral re-sealable opening |
US20080014391A1 (en) * | 2006-07-12 | 2008-01-17 | Coutts David A | Packaging roll stock with windows |
US9498930B2 (en) * | 2006-07-12 | 2016-11-22 | Genpak Lp | Packaging roll stock with windows |
US20100183250A1 (en) * | 2007-06-14 | 2010-07-22 | Bischof + Klein Gmbh & Co. Kg | Bag with Lateral Folds |
US7874731B2 (en) | 2007-06-15 | 2011-01-25 | S.C. Johnson Home Storage, Inc. | Valve for a recloseable container |
US7967509B2 (en) | 2007-06-15 | 2011-06-28 | S.C. Johnson & Son, Inc. | Pouch with a valve |
US8858077B2 (en) * | 2010-04-12 | 2014-10-14 | Velcro Industries B.V. | Reclosable pouch closures and related packaging and methods |
US20110249919A1 (en) * | 2010-04-12 | 2011-10-13 | Velcro Industries B.V., Curacao | Reclosable pouch closures and related packaging and methods |
US20120187125A1 (en) * | 2010-07-28 | 2012-07-26 | Illinois Tool Works Inc. | Gusseted pouch with pinned gussets |
US20130195385A1 (en) * | 2011-07-29 | 2013-08-01 | Illinois Tool Works Inc. | Tamper/child resistant bag |
US9517861B2 (en) | 2012-01-26 | 2016-12-13 | Sunbeam Products, Inc. | Expandable bag |
US20140241847A1 (en) * | 2013-02-25 | 2014-08-28 | Philip R. Short | Produce package and method for displaying produce for sale |
US20160001909A1 (en) * | 2013-02-27 | 2016-01-07 | Haver & Boecker Ohg | Packaging machine and method for filling open bags |
US10035318B2 (en) | 2014-03-05 | 2018-07-31 | Parkdale Incorporated | Closure bag with reinforced handles |
US20160073717A1 (en) * | 2014-09-11 | 2016-03-17 | Jon Jon Mulshenock | Waterproof Pocket |
US10421584B2 (en) | 2015-12-02 | 2019-09-24 | Poly-America, L.P. | Reclosable bag and method to make same |
USD783414S1 (en) | 2015-12-02 | 2017-04-11 | Poly-America, L.P. | Reclosable shopping bag |
USD784157S1 (en) | 2015-12-02 | 2017-04-18 | Poly-America, L.P. | Reclosable shopping bag |
USD782918S1 (en) | 2015-12-02 | 2017-04-04 | Poly-America, L.P. | Reclosable shopping bag |
USD782324S1 (en) | 2015-12-02 | 2017-03-28 | Poly-America, L.P. | Reclosable shopping bag |
USD784824S1 (en) | 2015-12-09 | 2017-04-25 | Poly-America, L.P. | Reclosable shopping bag |
USD796342S1 (en) | 2015-12-09 | 2017-09-05 | Poly-America, L.P. | Reclosable shopping bag |
USD949010S1 (en) | 2019-09-25 | 2022-04-19 | Inno-Pak, Llc | Tamper evident bag seal |
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US11358754B2 (en) | 2019-09-25 | 2022-06-14 | Inno-Pak, Llc | Tamper-evident bag seal and tamper-evident bags and methods |
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USD1003711S1 (en) | 2019-09-25 | 2023-11-07 | Inno-Pak, Llc | Tamper-evident bag seal |
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US11548690B2 (en) | 2020-11-13 | 2023-01-10 | Inno-Pak, Llc | Tamper-evident bag seal with tabs and methods of use |
Also Published As
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US20040120613A1 (en) | 2004-06-24 |
US7014363B2 (en) | 2006-03-21 |
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Legal Events
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Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |