US2595620A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydrogenation of halogenosilanes
Assignee: Union Carbide Corp
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Filing: 1948-11-27
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Granted: 1952-05-06
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Expires: 1968-11-27
Abstract
No abstract record available.
Inventors
- 👤 George H Wagner
- 👤 Charles E Erickson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:31
CPC Classifications
C; C01; C01B; C01B33/00; C01B33/04; C01B33/08; C01B33/107; C07; C07F; C07F7/00; C07F7/02; C07F7/08; C07F7/12; C07F7/121; C07F7/126
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
69 words
PROCESS OF HYDROGENATING A SILANE DERIVATIVE OF THE GROUP CONSISTING A SILICON TETRACHLORRIDE AND ALKYL TRICHLOROSILANE, TO SUBSTITUTE A HYDROGEN ATOM FOR AT LEAST ONE SILICAON-BONDED CHLORINE ATOM, WHICH COMPRISES CONTACTING A MIXTURE OF HYDROGEN AND THE VAPOR OF SAID SILANE DERIVATIVE WITH FINELY-DIVIDED SILICON AT A TEMPERATURE OF AT LEAST 400* C., SAID SILICON HAVING ASSOCIATED THEREWITH A CATALYTIC METAL OF THE GROUP CONSISTING OF COPPER AND NICKEL.
Claim 2
Dependent Claim
69 words
PROCESS OF HYDROGENATING A SILANE DERIVATIVE OF THE GROUP CONSISTING A SILICON TETRACHLORRIDE AND ALKYL TRICHLOROSILANE, TO SUBSTITUTE A HYDROGEN ATOM FOR AT LEAST ONE SILICAON-BONDED CHLORINE ATOM, WHICH COMPRISES CONTACTING A MIXTURE OF HYDROGEN AND THE VAPOR OF SAID SILANE DERIVATIVE WITH FINELY-DIVIDED SILICON AT A TEMPERATURE OF AT LEAST 400* C., SAID SILICON HAVING ASSOCIATED THEREWITH A CATALYTIC METAL OF THE GROUP CONSISTING OF COPPER AND NICKEL.
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) | 1955-05-06 | 1955-11-05 | 1956-05-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-05-06 | 1959-11-05 | 1960-05-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-05-06 | 1963-11-05 | 1964-05-06 | $7700.00 | Window Closed / Lapsed |