DE3990975T1 - HOLLOW GLASS BALLS - Google Patents
HOLLOW GLASS BALLSInfo
- 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- Withdrawn
Links
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DE19893990975 Withdrawn DE3990975T1 (en) | 1988-08-24 | 1989-08-07 | HOLLOW GLASS BALLS |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)
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)
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 |
-
1989
- 1989-08-07 DE DE19893990975 patent/DE3990975T1/en not_active Withdrawn
Patent Citations (2)
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)
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 |