DE3990975T1 - HOLLOW GLASS BALLS - Google Patents

HOLLOW GLASS BALLS

Info

Publication number
DE3990975T1
DE3990975T1 DE19893990975 DE3990975T DE3990975T1 DE 3990975 T1 DE3990975 T1 DE 3990975T1 DE 19893990975 DE19893990975 DE 19893990975 DE 3990975 T DE3990975 T DE 3990975T DE 3990975 T1 DE3990975 T1 DE 3990975T1
Authority
DE
Germany
Prior art keywords
hollow glass
glass balls
balls
hollow
glass
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.)
Withdrawn
Application number
DE19893990975
Other languages
German (de)
Inventor
Kenneth E Goetz
James A Hagarman
Jun Joseph P Giovene
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Potters Industries LLC
Original Assignee
Potters Industries LLC
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from US07/236,042 external-priority patent/US4983550A/en
Application filed by Potters Industries LLC filed Critical Potters Industries LLC
Publication of DE3990975T1 publication Critical patent/DE3990975T1/en
Withdrawn legal-status Critical Current

Links

DE19893990975 1988-08-24 1989-08-07 HOLLOW GLASS BALLS Withdrawn DE3990975T1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/236,042 US4983550A (en) 1988-08-24 1988-08-24 Hollow glass spheres
PCT/US1989/003382 WO1990002102A1 (en) 1988-08-24 1989-08-07 Hollow glass spheres

Publications (1)

Publication Number Publication Date
DE3990975T1 true DE3990975T1 (en) 1991-08-29

Family

ID=26779873

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19893990975 Withdrawn DE3990975T1 (en) 1988-08-24 1989-08-07 HOLLOW GLASS BALLS

Country Status (1)

Country Link
DE (1) DE3990975T1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008006778A1 (en) 2008-01-30 2009-08-06 Patentverwertung GbR (vertretungsberechtigter Gesellschafter: Bärbel Knopf, 15754 Heidesee) Fire retardant and method of use
EP2787059A1 (en) 2013-04-04 2014-10-08 Petra Sterrer Moulded fire protection body

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3365315A (en) * 1963-08-23 1968-01-23 Minnesota Mining & Mfg Glass bubbles prepared by reheating solid glass partiles
US4661137A (en) * 1984-06-21 1987-04-28 Saint Gobain Vitrage Process for producing glass microspheres

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3365315A (en) * 1963-08-23 1968-01-23 Minnesota Mining & Mfg Glass bubbles prepared by reheating solid glass partiles
US4661137A (en) * 1984-06-21 1987-04-28 Saint Gobain Vitrage Process for producing glass microspheres

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008006778A1 (en) 2008-01-30 2009-08-06 Patentverwertung GbR (vertretungsberechtigter Gesellschafter: Bärbel Knopf, 15754 Heidesee) Fire retardant and method of use
EP2787059A1 (en) 2013-04-04 2014-10-08 Petra Sterrer Moulded fire protection body
WO2014161963A1 (en) 2013-04-04 2014-10-09 Petra Sterrer Moulded body for fire protection

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Legal Events

Date Code Title Description
OP8 Request for examination as to paragraph 44 patent law
8139 Disposal/non-payment of the annual fee
8170 Reinstatement of the former position
8130 Withdrawal