US2570463A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for preparing organosilanes
Assignee: EIDP Inc
•
Filing: 1948-01-30
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Granted: 1951-10-09
•
Expires: 1968-01-30
Abstract
No abstract record available.
Inventors
- 👤 Ernsberger Maurice Leon
- 👤 Lipscomb Robert De Wald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 08:55
CPC Classifications
C; C07; C07F; C07F7/00; C07F7/02; C07F7/08; C07F7/12; C07F7/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
41 words
A PROCESS FOR THE PREPARTION OF ORGANOSILICON COMPOUNDS WHEREIN CYCLOHEXANE IS HEATED FOR 13 HOURS AT A TEMPERATURE RISING FROM 75* C. TO 115* C. WITH TRICHLOROSILANE IN THE PRESENCE OF A MIXTURE OF ALPHA,ALPHA''-AZODIISOBUTYRONITRILE AND 1,1''-AZODICHLOHEXANECARBONITRILE AND CYCLOHEXYLTRICHLOROSILANE IS ISOLATED.
Claim 2
Dependent Claim
41 words
A PROCESS FOR THE PREPARTION OF ORGANOSILICON COMPOUNDS WHEREIN CYCLOHEXANE IS HEATED FOR 13 HOURS AT A TEMPERATURE RISING FROM 75* C. TO 115* C. WITH TRICHLOROSILANE IN THE PRESENCE OF A MIXTURE OF ALPHA,ALPHA''-AZODIISOBUTYRONITRILE AND 1,1''-AZODICHLOHEXANECARBONITRILE AND CYCLOHEXYLTRICHLOROSILANE IS ISOLATED.
References Cited (Backward Citations)
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US2405019A
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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) | 1954-10-08 | 1955-04-09 | 1955-10-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-10-08 | 1959-04-09 | 1959-10-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-10-08 | 1963-04-09 | 1963-10-09 | $7700.00 | Window Closed / Lapsed |