US3654332A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Organofunctional-silicon materials
Assignee: General Electric Co
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Filing: 1969-07-18
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Granted: 1972-04-04
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Expires: 1989-07-18
Abstract
Abstract CERTAIN BIS(ORGANOFUNCTIONAL-ALKYL)SILANES ARE PROVIDED. THESE MATERIALS HAVE THE FORMULA: (1) QQ''SIYY'' WHERE Q IS AN ORGANOFUNCTIONAL RADICAL; Q'' IS AN ORGANOFUNCTIONAL RADICAL OR A SILALKYLENE GROUP HAVING AN ORGANOFUNCTIONAL RADICAL; Y IS A HALIDE SUBSTITUENT; AND Y'' IS A HALIDE SUBSTITUENT OF A MONOVALENT HYDROCARBON RADICAL, FREE OF ALIPHATIC UNSATURATION. THE MATERIALS ARE USEFUL AS GLASS SIZINGS, FABRIC STIFFENERS, METAL PROTECTANTS, AND AS INTERMEDIATES FOR THE PRODUCTION OF VARIOUS USEFUL ORGANOPOLYSILOXANES.
Inventors
- 👤 Abe Berger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:48
CPC Classifications
C; C07; C07F; C07F7/00; C07F7/02; C07F7/08; C07F7/12; C08; C08G; C08G77/00; C08G77/04; C08G77/12; C08G77/14; C08G77/22
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) | 1975-04-04 | 1975-10-04 | 1976-04-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-04-04 | 1979-10-04 | 1980-04-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-04-04 | 1983-10-04 | 1984-04-04 | $7700.00 | Window Closed / Lapsed |