Patent US3634136A successfully refreshed from Google Patents.
US3634136A
Expired / Lapsed
US
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Flame resistant silicone composition
Assignee: Boeing North American Inc
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Filing: 1969-06-09
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Granted: 1972-01-11
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Expires: 1989-06-09
Abstract
Abstract A silicone elastomer having from 50 to 180 parts by weight of sodium bicarbonate is cured at a temperature below the decomposition temperature of sodium bicarbonate so as to produce a dense, rubberlike material for moldings and coatings of metal which have substantial flame resistance, even in an atmosphere of pure oxygen.
Inventors
- 👤 Franklin J French
- 👤 Dominic C Mitchell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:39
CPC Classifications
C; C08; C08K; C08K3/00; C08K3/18; C08K3/24; C08K3/26; C09; C09D; C09D5/00; C09D5/18; C08K7/00; C08K7/22; C08K7/24; C08K7/28; Y; Y10; Y10S; Y10S428/00; Y10S428/92; Y10S428/921; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31652; Y10T428/31663; Y10T428/31678; Y10T428/31707; Y10T428/31826
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2624777A
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US3006787A
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US3179589A
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US3238129A
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US3477869A
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US3519697A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-01-10 | 1975-07-12 | 1976-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-10 | 1979-07-12 | 1980-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-10 | 1983-07-12 | 1984-01-11 | $7700.00 | Window Closed / Lapsed |