Patent US2887452A successfully refreshed from Google Patents.
US2887452A
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Motor lubricating oil composition
Assignee: Texaco Inc
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Filing: 1956-12-11
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Granted: 1959-05-19
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Expires: 1976-12-11
Abstract
No abstract record available.
Inventors
- 👤 Alpert Norman
- 👤 Stanley R Newman
- 👤 Robert Y Heisler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 16:19
CPC Classifications
C; C10; C10M; C10M1/00; C10M1/08; C10M2207/00; C10M2207/02; C10M2207/023; C10M2207/027; C10M2207/28; C10M2207/282; C10M2207/30; C10M2207/302; C10M2207/304; C10M2207/34; C10M2209/00; C10M2209/02; C10M2209/08; C10M2209/084; C10M2209/10; C10M2209/103; C10M2209/104; C10M2209/105; C10M2209/106; C10M2209/107; C10M2209/11; C10M2209/111; C10M2209/112; C10M2215/00; C10M2215/10; C10M2219/00; C10M2219/04; C10M2219/044; C10M2219/06; C10M2221/00; C10M2221/04; C10M2221/043; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/045; C10N; C10N2010/00; C10N2010/04; C10N2030/00; C10N2030/08; C10N2040/00; C10N2040/12; C10N2040/13
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
15 words
A LUBRICATING OIL CONTAINING A MINOR AMOUNT OF A COMPOUND HAVING THE FOLLOWING GENERAL FORMULA
Claim 2
Dependent Claim
15 words
A LUBRICATING OIL CONTAINING A MINOR AMOUNT OF A COMPOUND HAVING THE FOLLOWING GENERAL FORMULA
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) | 1962-05-18 | 1962-11-17 | 1963-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-05-18 | 1966-11-17 | 1967-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-05-18 | 1970-11-17 | 1971-05-19 | $7700.00 | Window Closed / Lapsed |