US3801544A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydrogen-functional organopolysiloxanes
Assignee: Corning Inc
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Filing: 1973-01-02
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Granted: 1974-04-02
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Expires: 1993-01-02
Abstract
Abstract TRIMETHYLSILY-TERMINATED METHYLHDROGENSILOXY DIPHENYLSILOXY COPOLYMERS CONTAINING FROM ABOUT 20 TO 45 MOL PERCENT DIPHENYLSILOXY UNITS GIVE INCREASED STRENGTH AND FLEXIBILITY WHEN USED AS THE CURING AGENT FOR VINYL-FUNCTIONAL ORGANOPOLYSILOXANES.
Inventors
- 👤 A Mink
- 👤 D Mitchell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 16:13
CPC Classifications
C; C08; C08G; C08G77/00; C08G77/04; C08G77/12; C08L; C08L83/00; C08L83/04; C08G77/70
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) | 1977-04-01 | 1977-10-01 | 1978-04-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-04-01 | 1981-10-01 | 1982-04-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-04-01 | 1985-10-01 | 1986-04-02 | $7700.00 | Window Closed / Lapsed |