US2440375A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lubricating oil
Assignee: Texaco Inc
•
Filing: 1942-02-23
•
Granted: 1948-04-27
•
Expires: 1962-02-23
Abstract
No abstract record available.
Inventors
- 👤 Rush F Mccleary
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 02:05
CPC Classifications
C; C10; C10M; C10M1/00; C10M1/08; C10M2215/00; C10M2215/02; C10M2215/06; C10M2215/062; C10M2215/22; C10M2215/221; C10M2215/225; C10M2215/226; C10M2215/24; C10M2215/30; C10M2219/00; C10M2219/02; C10M2219/022; C10M2219/024; C10M2219/08; C10M2219/082; C10M2219/086; C10M2221/00; C10M2221/04; C10M2221/041
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2114122A
Cited
US1789926A
Cited
US2098869A
Cited
US2179061A
Cited
US2196261A
Cited
US2223411A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-04-27 | 1951-10-27 | 1952-04-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-04-27 | 1955-10-27 | 1956-04-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-04-27 | 1959-10-27 | 1960-04-27 | $7700.00 | Window Closed / Lapsed |