Patent US2907784A successfully refreshed from Google Patents.
US2907784A
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Preparation of cyanoalkylsilanes employing trihydrocarbyl phosphine catalysts
Assignee: Union Carbide Corp
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Filing: 1957-06-28
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Granted: 1959-10-06
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Expires: 1977-06-28
Abstract
No abstract record available.
Inventors
- 👤 Victor B Jex
- 👤 John E Mcmahon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 08:07
CPC Classifications
C; C07; C07F; C07F7/00; C07F7/02; C07F7/08; C07F7/12; C07F7/14; C08; C08G; C08G77/00; C08G77/04; C08G77/22; C08G77/26
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
10 words
A PROCESS FOR REACTING A SILANE, REPRESENTED BY THE FORMULA:
Claim 2
Dependent Claim
10 words
A PROCESS FOR REACTING A SILANE, REPRESENTED BY THE FORMULA:
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-10-05 | 1963-04-06 | 1963-10-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-10-05 | 1967-04-06 | 1967-10-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-10-05 | 1971-04-06 | 1971-10-06 | $7700.00 | Window Closed / Lapsed |