US2745860A
Expired / Lapsed
US
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Disproportionation of alkoxydisilyl hydrocarbons
Assignee: Union Carbide Corp
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Filing: 1952-10-16
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Granted: 1956-05-15
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Expires: 1972-10-16
Abstract
No abstract record available.
Inventors
- 👤 Bailey Donald Leroy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 17:26
CPC Classifications
C; C07; C07F; C07F7/00; C07F7/02; C07F7/08; C07F7/0896; C07F7/18; C07F7/1804; C07F7/1872; C07F7/188
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
45 words
A PROCESS OF DISPROPORTIONATING AN ALKOXYDISILYL HYDROCARBON CONTAINING AT LEAST ONE HYDROGEN ATOM ATTACHED TO A SILICON ATOM AND AT LEAST ONE ALKOXY RADICAL ATTACHED TO A SILICON ATOM, WHICH COMPRISES TREATING SAID ALKOXYDISILYL HYDROCARBON WITH AN ALKALI METAL ALKOXIDE AND RECOVERING A DISILYL HYDROCARBON.
Claim 2
Dependent Claim
45 words
A PROCESS OF DISPROPORTIONATING AN ALKOXYDISILYL HYDROCARBON CONTAINING AT LEAST ONE HYDROGEN ATOM ATTACHED TO A SILICON ATOM AND AT LEAST ONE ALKOXY RADICAL ATTACHED TO A SILICON ATOM, WHICH COMPRISES TREATING SAID ALKOXYDISILYL HYDROCARBON WITH AN ALKALI METAL ALKOXIDE AND RECOVERING A DISILYL HYDROCARBON.
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) | 1959-05-15 | 1959-11-14 | 1960-05-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-15 | 1963-11-14 | 1964-05-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-15 | 1967-11-14 | 1968-05-15 | $7700.00 | Window Closed / Lapsed |