Patent US3826773A successfully refreshed from Google Patents.
US3826773A
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US
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Silicone composition containing pretreated silica filler
Assignee: General Electric Co
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Filing: 1973-04-11
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Granted: 1974-07-30
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Expires: 1993-04-11
Abstract
Abstract A COMPOSITION CONTAINING A POLYSILOXANE RESIN AND A SILICA FILLER WHICH HAS BEEN PRETREATED BY CALCINING FOR AT LEAST ABOUT ONE HOUR AT A TEMPERATURE OF AT LEAST ABOUT 250*C., AND/OR BY WASHING WITH AN AQUEOUS MEDIUM. THE COMPOSITION IS PARTICULARLY USEFUL AS A MOLDING COMPOUND SUCH AS IN THE TRANSFER MOLDING OF TRANSISTOR HOUSINGS.
Inventors
- 👤 R Cooke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 02:16
CPC Classifications
C; C09; C09C; C09C3/00; C09C3/12; C08; C08K; C08K3/00; C08K3/34; C08K3/36; C09C1/00; C09C1/28; C09C1/30; C09C1/309; C09C3/04; C09C3/043; C01; C01P; C01P2004/00; C01P2004/80
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-07-29 | 1978-01-28 | 1978-07-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-07-29 | 1982-01-28 | 1982-07-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-07-29 | 1986-01-28 | 1986-07-30 | $7700.00 | Window Closed / Lapsed |