US2770633A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Organosilicon esters
Assignee: Dow Silicones Corp
•
Filing: 1953-10-28
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Granted: 1956-11-13
•
Expires: 1973-10-28
Abstract
No abstract record available.
Inventors
- 👤 Leo H Sommer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 00:46
CPC Classifications
C; C10; C10M; C10M3/00; C10M2229/00; C10M2229/04; C10M2229/045; C10M2229/046; C10M2229/047; C10M2229/048; C10N; C10N2020/00; C10N2020/01
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
28 words
A CONPOUND OF THE FORMULA WHERE IS A MONOVALENT HYDROCARBON RADICAL, N IS AN INTEGER FROM 3 TO 18 AND M HAS A VALUE OF AT LEAST ONE.
Claim 2
Dependent Claim
28 words
A CONPOUND OF THE FORMULA WHERE IS A MONOVALENT HYDROCARBON RADICAL, N IS AN INTEGER FROM 3 TO 18 AND M HAS A VALUE OF AT LEAST ONE.
References Cited (Backward Citations)
US2527591A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-11-13 | 1960-05-14 | 1960-11-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-11-13 | 1964-05-14 | 1964-11-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-11-13 | 1968-05-14 | 1968-11-13 | $7700.00 | Window Closed / Lapsed |