US2579341A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of phenylchlorosilanes
Assignee: General Electric Co
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Filing: 1951-03-03
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Granted: 1951-12-18
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Expires: 1971-03-03
Abstract
No abstract record available.
Inventors
- 👤 William A Schwenker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 08:04
CPC Classifications
C; C07; C07F; C07F7/00; C07F7/02; C07F7/08; C07F7/12; C07F7/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
48 words
THE METHOD OF MAKING PHENYLCHLOROSILANE WHICH COMPRISES PASSING AT AN ELEVATED TEMPERATURE CHLOROBENZENE OVER A CONTACT MASS COMPRISING FINELY DIVIDED COMMERCIAL SILICON CONTAINING TRACES OF ALUMINUM, THERE BEING PRESENT IN THE POWDER, FROM ABOUT 1 TO 10%, BY WEIGHT, SODIUM CHLORIDE, BASED ON THE WEIGHT OF THE SILICON.
Claim 2
Independent Claim
48 words
THE METHOD OF MAKING PHENYLCHLOROSILANE WHICH COMPRISES PASSING AT AN ELEVATED TEMPERATURE CHLOROBENZENE OVER A CONTACT MASS COMPRISING FINELY DIVIDED COMMERCIAL SILICON CONTAINING TRACES OF ALUMINUM, THERE BEING PRESENT IN THE POWDER, FROM ABOUT 1 TO 10%, BY WEIGHT, SODIUM CHLORIDE, BASED ON THE WEIGHT OF THE SILICON.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-12-17 | 1955-06-18 | 1955-12-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-12-17 | 1959-06-18 | 1959-12-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-12-17 | 1963-06-18 | 1963-12-18 | $7700.00 | Window Closed / Lapsed |