US3732330A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Curable compositions containing hydrogen-functional organopolysiloxanes
Assignee: Dow Silicones Corp
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Filing: 1972-03-08
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Granted: 1973-05-08
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Expires: 1992-03-08
Abstract
Abstract TRIMETHYLISILYL-TERMINATED METHYLHYDROGENSILOXY DIPHENYLSILOXY COPOLYMERS CONTAINING FROM ABOUT 20 TO 45 MOL PERCENT DIPHENYLSILOXY UNITS GIVE INCREASED STRENGTH AND FLEXIBILITY WHEN USED AS THE CURING AGENT FOR VINYLFUNCTIONAL ORGANOPOLYSILOXANES.
Inventors
- 👤 A Mink
- 👤 D Mitchell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 07:12
CPC Classifications
C; C08; C08G; C08G77/00; C08G77/04; C08G77/12; C08L; C08L83/00; C08L83/04; C08G77/20; C08G77/70
Claims Analysis
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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) | 1976-05-07 | 1976-11-06 | 1977-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-05-07 | 1980-11-06 | 1981-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-05-07 | 1984-11-06 | 1985-05-08 | $7700.00 | Window Closed / Lapsed |