Patent US2179060A successfully refreshed from Google Patents.
US2179060A
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US
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Manufacture of lubricating compositions
Assignee: Gulf Oil Corp
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Filing: 1936-01-22
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Granted: 1939-11-07
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Expires: 1956-01-22
Abstract
No abstract record available.
Inventors
- 👤 Herschel G Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 13:59
CPC Classifications
C; C10; C10M; C10M5/00; C10M135/00; C10M135/02; C10M135/06; C10M2201/00; C10M2201/04; C10M2201/041; C10M2201/042; C10M2201/05; C10M2207/00; C10M2207/10; C10M2207/12; C10M2207/125; C10M2207/129; C10M2207/40; C10M2207/404; C10M2219/00; C10M2219/02; C10M2219/024; C10N; C10N2040/00; C10N2040/135; C10N2040/20; C10N2040/22; C10N2050/00; C10N2050/10; C10N2070/00; C10N2070/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1942-11-06 | 1943-05-08 | 1943-11-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1946-11-06 | 1947-05-08 | 1947-11-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1950-11-06 | 1951-05-08 | 1951-11-07 | $7700.00 | Window Closed / Lapsed |