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US3404169A
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Preparation of vinylsilanes by si-h-acetylene addition
Assignee: Rhone Poulenc SA
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Filing: 1964-12-10
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Granted: 1968-10-01
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Expires: 1984-12-10
Abstract
No abstract record available.
Inventors
- 👤 Gaignon Maurice Henri Ro Jules
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:23
CPC Classifications
C; C07; C07F; C07F7/00; C07F7/02; C07F7/08; C07F7/0896; C07F7/0801; C07F7/12; C07F7/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2823218A
Cited
US3220972A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-10-01 | 1972-04-01 | 1972-10-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-10-01 | 1976-04-01 | 1976-10-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-10-01 | 1980-04-01 | 1980-10-01 | $7700.00 | Window Closed / Lapsed |