Patent US2492789A successfully refreshed from Google Patents.
US2492789A
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Lubricating oil composition
Assignee: Jasco Inc
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Filing: 1946-11-21
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Granted: 1949-12-27
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Expires: 1966-11-21
Abstract
No abstract record available.
Inventors
- 👤 Hector C Evans
- 👤 David W Young
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:39
CPC Classifications
C; C10; C10M; C10M161/00; C10M157/00; C10M2203/00; C10M2203/06; C10M2205/00; C10M2205/02; C10M2205/022; C10M2205/026; C10M2205/14; C10M2205/22; C10M2207/00; C10M2207/02; C10M2207/021; C10M2207/04; C10M2207/08; C10M2207/28; C10M2207/281; C10M2207/282; C10M2207/283; C10M2207/286; C10M2207/34; C10M2207/40; C10M2207/404; C10M2209/00; C10M2209/02; C10M2209/04; C10M2209/06; C10M2209/062; C10M2209/08; C10M2209/084; C10M2209/10; C10M2209/102; C10M2209/103; C10M2209/104; C10M2209/109; C10M2211/00; C10M2211/02; C10M2211/022; C10M2211/04; C10M2211/042; C10M2211/044; C10M2211/06; C10M2215/00; C10M2215/02; C10M2215/16; C10M2215/20; C10M2215/202; C10M2219/00; C10M2219/08; C10M2219/082; C10N; C10N2040/00; C10N2040/06; C10N2050/00; C10N2050/10
Claims Analysis
Total Claims: 0
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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) | 1952-12-26 | 1953-06-27 | 1953-12-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-12-26 | 1957-06-27 | 1957-12-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-12-26 | 1961-06-27 | 1961-12-27 | $7700.00 | Window Closed / Lapsed |