US2842580A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cleavage of organohalogenopolysilanes with quaternary ammonium or phosphonium halides
Assignee: General Electric Co
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Filing: 1955-11-22
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Granted: 1958-07-08
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Expires: 1975-11-22
Abstract
No abstract record available.
Inventors
- 👤 Alfred R Gilbert
- 👤 Glenn D Cooper
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 23:49
CPC Classifications
C; C07; C07F; C07F7/00; C07F7/02; C07F7/08; C07F7/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
73 words
THE PROCESS FOR OBTAINING ORGANOHALOGENOMONOSILANES IN WHICH THE FOUR VALENCES OF SILICON ARE SATISFIED BY HALOGENO AND ORGANO RADICALS FROM ORGANOHALOGENOPOLYSILANES IN WHICH THE ORGANO GROUPS ARE MONOVALENT HYDROCARBON RADICALS ATTACHED DIRECTLY TO SILICON BY CARBONSILICON LINKAGES, WHICH COMPRISES TREATING SAID ORGANOHALOGENOPOLYSILANES WITH FROM 0.5 TO 10 PERCENT BY WEIGHT, BASED ON THE WEIGHT OF SAID ORGANOHALOGENOPOLYSILANES, OF A QUATERNARY HALIDE SELECTED FROM THE CLASS CONSISTING OF QUATERNARY AMMONIUM HALIDES HAVING THE FORMULA
Claim 2
Dependent Claim
73 words
THE PROCESS FOR OBTAINING ORGANOHALOGENOMONOSILANES IN WHICH THE FOUR VALENCES OF SILICON ARE SATISFIED BY HALOGENO AND ORGANO RADICALS FROM ORGANOHALOGENOPOLYSILANES IN WHICH THE ORGANO GROUPS ARE MONOVALENT HYDROCARBON RADICALS ATTACHED DIRECTLY TO SILICON BY CARBONSILICON LINKAGES, WHICH COMPRISES TREATING SAID ORGANOHALOGENOPOLYSILANES WITH FROM 0.5 TO 10 PERCENT BY WEIGHT, BASED ON THE WEIGHT OF SAID ORGANOHALOGENOPOLYSILANES, OF A QUATERNARY HALIDE SELECTED FROM THE CLASS CONSISTING OF QUATERNARY AMMONIUM HALIDES HAVING THE FORMULA
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-07-07 | 1962-01-06 | 1962-07-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-07-07 | 1966-01-06 | 1966-07-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-07-07 | 1970-01-06 | 1970-07-08 | $7700.00 | Window Closed / Lapsed |