US3330762A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lubricant compositions
Assignee: Shell USA Inc
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Filing: 1964-12-11
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Granted: 1967-07-11
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Expires: 1984-12-11
Abstract
No abstract record available.
Inventors
- 👤 Kenneth T Wendler
- 👤 Robert C Spillman
- 👤 James R Price
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 10:44
CPC Classifications
C; C10; C10M; C10M3/00; C10M2207/00; C10M2207/10; C10M2207/12; C10M2207/121; C10M2207/123; C10M2207/129; C10M2207/22; C10M2207/28; C10M2207/281; C10M2207/282; C10M2207/283; C10M2207/286; C10M2207/287; C10M2207/288; C10M2207/289; C10M2207/30; C10M2207/302; C10M2207/304; C10M2207/34; C10M2209/00; C10M2209/10; C10M2209/103; C10M2209/104; C10M2209/105; C10M2209/109; C10M2215/00; C10M2215/02; C10M2215/06; C10M2215/064; C10M2215/22; C10M2215/221; C10M2215/225; C10M2215/226; C10M2215/24; C10M2215/30; C10M2219/00; C10M2219/06; C10M2219/062; C10M2219/066; C10M2219/068; C10M2223/00; C10M2223/06; C10M2223/063; C10M2223/065; C10M2229/00; C10M2229/02; C10M2229/04; C10M2229/05; C10N; C10N2010/00; C10N2010/02; C10N2020/00; C10N2020/01; C10N2030/00; C10N2030/08; C10N2040/00; C10N2040/02; C10N2040/12; C10N2040/13
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
45 words
A LUBRICANT COMPOSITION COMPRISING A MAJOR AMOUNT OF A SYNTHETIC ESTER LUBRICATING OIL, .01% TO 5% BY WEIGHT OF DIPHENYLAMINE, .01% TO 5% BY WEIGHT OF DIPYRIDYLAMINE, AND .01% TO 3% BY WEIGHT OF A MIXED SALT OF MONOCHLOROMETHYLPHOSPHONIC ACID AND TERT-C18-C22 ALKYL PRIMARY AMINES.
Claim 2
Dependent Claim
45 words
A LUBRICANT COMPOSITION COMPRISING A MAJOR AMOUNT OF A SYNTHETIC ESTER LUBRICATING OIL, .01% TO 5% BY WEIGHT OF DIPHENYLAMINE, .01% TO 5% BY WEIGHT OF DIPYRIDYLAMINE, AND .01% TO 3% BY WEIGHT OF A MIXED SALT OF MONOCHLOROMETHYLPHOSPHONIC ACID AND TERT-C18-C22 ALKYL PRIMARY AMINES.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-07-10 | 1971-01-09 | 1971-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-10 | 1975-01-09 | 1975-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-10 | 1979-01-09 | 1979-07-11 | $7700.00 | Window Closed / Lapsed |