US2674579A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mixed aryloxy aryl silanes
Assignee: California Research LLC
•
Filing: 1950-01-03
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Granted: 1954-04-06
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Expires: 1970-01-03
Abstract
No abstract record available.
Inventors
- 👤 Clarence R Morgan
- 👤 Walter F Olds
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 00:46
CPC Classifications
C; C09; C09K; C09K5/00; C09K5/08; C07; C07F; C07F7/00; C07F7/02; C07F7/08; C07F7/18; C07F7/1804
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
35 words
A MIXTURE OF ARYL-TRIARYLOXYSILANE OBTAINED BY REACTION TO CHEMICAL EQUILIBRIUM OF ONE MOLE OF ARYL-TRICHLOROSILANE WITH A MIXTURE COMPOSED OF THREE MOLES OF PHENOLS IN EQUIMOLECULAR AMOUNTS UNTIL LIBERATION OF HYDROGEN CHLORIDE IS ESSENTIALLY COMPLETE.
Claim 2
Dependent Claim
35 words
A MIXTURE OF ARYL-TRIARYLOXYSILANE OBTAINED BY REACTION TO CHEMICAL EQUILIBRIUM OF ONE MOLE OF ARYL-TRICHLOROSILANE WITH A MIXTURE COMPOSED OF THREE MOLES OF PHENOLS IN EQUIMOLECULAR AMOUNTS UNTIL LIBERATION OF HYDROGEN CHLORIDE IS ESSENTIALLY COMPLETE.
References Cited (Backward Citations)
US2386793A
Cited
US2335012A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-04-05 | 1957-10-05 | 1958-04-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-04-05 | 1961-10-05 | 1962-04-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-04-05 | 1965-10-05 | 1966-04-06 | $7700.00 | Window Closed / Lapsed |