US3053768A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Synthetic lubricant compositions
Assignee: Union Carbide Corp
•
Filing: 1958-12-23
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Granted: 1962-09-11
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Expires: 1978-12-23
Abstract
No abstract record available.
Inventors
- 👤 Robert A Cupper
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 14:09
CPC Classifications
C; C10; C10M; C10M3/00; C10M2207/00; C10M2207/02; C10M2207/023; C10M2207/025; C10M2207/026; C10M2207/28; C10M2207/282; C10M2207/283; C10M2207/34; C10M2215/00; C10M2215/02; C10M2215/06; C10M2215/064; C10M2215/065; C10M2219/00; C10M2219/04; C10M2219/044; C10M2219/10; C10M2219/104; C10M2219/108; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/041; C10M2227/00; C10M2227/04; C10N; C10N2030/00; C10N2030/08; C10N2040/00; C10N2040/12; C10N2040/13
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
31 words
A LUBRICANT COMPOSITION COMPRISING A MAJOR AMOUNT OF A SYNTHETIC ESTER LUBRICANT AND A MINOR AMOUNT OF DIPHENYLSILANEDIOL SUFFICIENT TO IMPROVE LUBRICITY AND LOADCARRYING PROPERTIES THEREOF, SAID ESTER HAVING THE FORMULA:
Claim 2
Dependent Claim
31 words
A LUBRICANT COMPOSITION COMPRISING A MAJOR AMOUNT OF A SYNTHETIC ESTER LUBRICANT AND A MINOR AMOUNT OF DIPHENYLSILANEDIOL SUFFICIENT TO IMPROVE LUBRICITY AND LOADCARRYING PROPERTIES THEREOF, SAID ESTER HAVING THE FORMULA:
References Cited (Backward Citations)
US2053474A
Cited
US2129281A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-09-10 | 1966-03-12 | 1966-09-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-09-10 | 1970-03-12 | 1970-09-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-09-10 | 1974-03-12 | 1974-09-11 | $7700.00 | Window Closed / Lapsed |