US2646441A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for dehalogenating halogenosilanes
Assignee: Union Carbide Corp
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Filing: 1949-12-17
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Granted: 1953-07-21
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Expires: 1969-12-17
Abstract
No abstract record available.
Inventors
- 👤 Duane John Joseph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:04
CPC Classifications
C; C08; C08G; C08G77/00; C08G77/04; C08G77/06
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
51 words
PROCESS OF CONVERTING AN ORGANO HALOGENOSILANE TAKEN FROM THE GROUP CONSISTING OF HYDROCARBON AND HYDROCARBONOXY HALOGENOSILANES TO AN ORGANOSILICON COMPOUND SUBSTANTIALLY FREE FROM HALOGEN WHICH COMPRISES REACTING THE HALOGENOSILANE WITH A METAL SALT OF THE GROUP CONSISTING OF SODIUM BICARBONATE, SODIUM BISULPHITE, POTASSIUM BICARBONATE, AND POTASSIUM BISULPHITE UNDER SUBSTANTIALLY ANHYDROUS CONDITIONS.
References Cited (Backward Citations)
US2457539A
Cited
US2452416A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-07-20 | 1957-01-19 | 1957-07-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-07-20 | 1961-01-19 | 1961-07-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-07-20 | 1965-01-19 | 1965-07-21 | $7700.00 | Window Closed / Lapsed |