US3697473A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composition curable through si-h and si-ch equals ch2 with improved properties
Assignee: Dow Silicones Corp
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Filing: 1971-01-04
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Granted: 1972-10-10
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Expires: 1991-01-04
Abstract
Abstract A COMPOSITION CONTAINS A POLYDIORGANOSILOXANE HAVING TWO VINYL RADICALS, A MIXTURE OF SILICON COMPOUNDS HAVING SILICON-BONDED HYDROGEN ATOMS WHERE ONE ORGANOSILOXANE COMPOUND HAS TWO SILICON-BONDED HYDROGEN ATOMS AND THE OTHER ORGANOSILOXANE COMPOUND HAS THREE TO TEN SILICON BONDD HYDROGEN ATOMS. THE COMPOSITION IS CURED BY A PLATINUM CATALYST. THE CURED COMPOSITION HAS ELASTOMERIC PROPERTIES.
Inventors
- 👤 Keith E Polmanteer
- 👤 David N Willing
- 👤 Thomas D Talcott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:34
CPC Classifications
C; C08; C08L; C08L83/00; C08L83/04; C08G; C08G77/00; C08G77/04; C08G77/12; C08G77/20; C08G77/70; Y; Y10; Y10S; Y10S128/00; Y10S128/21
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) | 1975-10-10 | 1976-04-10 | 1976-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-10 | 1980-04-10 | 1980-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-10 | 1984-04-10 | 1984-10-10 | $7700.00 | Window Closed / Lapsed |