Patent US3296136A successfully refreshed from Google Patents.
US3296136A
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US
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Lubricant compositions of improved oxidation resistance
Assignee: Sinclair Research Inc
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Filing: 1963-11-13
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Granted: 1967-01-03
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Expires: 1983-11-13
Abstract
No abstract record available.
Inventors
- 👤 Daniel B Eickemeyer
- 👤 Tai S Chao
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 06:49
CPC Classifications
C; C10; C10M; C10M3/00; C10M2207/00; C10M2207/28; C10M2207/281; C10M2207/282; C10M2207/283; C10M2207/286; C10M2207/30; C10M2207/302; C10M2207/304; C10M2207/34; C10M2207/40; C10M2207/404; C10M2209/00; C10M2209/10; C10M2209/102; C10M2215/00; C10M2215/02; C10M2215/06; C10M2215/064; C10M2215/065; C10M2215/066; C10M2215/22; C10M2215/221; C10M2215/225; C10M2215/226; C10M2215/24; C10M2215/30; C10M2219/00; C10M2219/06; C10M2219/062; C10M2219/064; C10M2219/10; C10M2219/104; C10M2219/108; C10M2229/00; C10M2229/04; C10M2229/041; C10N; C10N2030/00; C10N2030/08; C10N2040/00; C10N2040/12; C10N2040/13
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
33 words
A LUBRICANT COMPOSITON CONSISTING ESSENTIALLY OF A MAJOR AMOUNT OF AN ESTER BASE FLUID OF LUBRICATING VISCOSITY AND SMALL AMOUNTS OF EACH OF AN ESTER BASE FLUID-SOLUBLE COMPOUND HAVING THE FOLLOWING STRUCTURAL FORMULA:
Claim 2
Dependent Claim
33 words
A LUBRICANT COMPOSITON CONSISTING ESSENTIALLY OF A MAJOR AMOUNT OF AN ESTER BASE FLUID OF LUBRICATING VISCOSITY AND SMALL AMOUNTS OF EACH OF AN ESTER BASE FLUID-SOLUBLE COMPOUND HAVING THE FOLLOWING STRUCTURAL FORMULA:
Claim 3
Dependent Claim
21 words
THE LUBRICANT COMPOSITON OF CLAIM 1 WHEREIN THE ESTER BASE FLUID IS AN ESTER OF AN ALKANOL HAVING THE GENERAL FORMULA:
References Cited (Backward Citations)
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US2302552A
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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) | 1970-01-02 | 1970-07-04 | 1971-01-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-02 | 1974-07-04 | 1975-01-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-02 | 1978-07-04 | 1979-01-03 | $7700.00 | Window Closed / Lapsed |