Patent US2598436A successfully refreshed from Google Patents.
US2598436A
Expired / Lapsed
US
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Method for preparing organohalogenosilanes
Assignee: General Electric Co
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Filing: 1949-09-21
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Granted: 1952-05-27
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Expires: 1969-09-21
Abstract
No abstract record available.
Inventors
- 👤 Mohler Donald
- 👤 Jesse E Sellers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 12:49
CPC Classifications
C; C07; C07F; C07F7/00; C07F7/02; C07F7/08; C07F7/12; C07F7/121; C07F7/122
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
56 words
THE PROCESS WHICH COMPRISES PASSING UNDER SUBSTANTIALLY ANHYDROUS CONDITIONS AND IN THE VAPOR PHASES A MIXTURE OF INGREDIENTS COMPRISING (1) CHLOROBENZENE AND (2) METHYLDICHLOROSILANE THROUGH A HEATED ZONE MAINTAINED AT A TEMPERATURE OF AROUND 450* TO 575* C. AND CONTAINING A CATALYST COMPRISING PALLADIUM, THEREBY TO OBTAIN METHYL PHENYLDICHLOROSILANE, AND THEREAFTER ISOLATING THE AFORESAID METHYL PHENYLDICHLOROSILANE.
Claim 2
Dependent Claim
56 words
THE PROCESS WHICH COMPRISES PASSING UNDER SUBSTANTIALLY ANHYDROUS CONDITIONS AND IN THE VAPOR PHASES A MIXTURE OF INGREDIENTS COMPRISING (1) CHLOROBENZENE AND (2) METHYLDICHLOROSILANE THROUGH A HEATED ZONE MAINTAINED AT A TEMPERATURE OF AROUND 450* TO 575* C. AND CONTAINING A CATALYST COMPRISING PALLADIUM, THEREBY TO OBTAIN METHYL PHENYLDICHLOROSILANE, AND THEREAFTER ISOLATING THE AFORESAID METHYL PHENYLDICHLOROSILANE.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-05-27 | 1955-11-26 | 1956-05-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-05-27 | 1959-11-26 | 1960-05-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-05-27 | 1963-11-26 | 1964-05-27 | $7700.00 | Window Closed / Lapsed |