Patent US2489671A successfully refreshed from Google Patents.
US2489671A
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Oil compositions
Assignee: TIDE WATER ASSOCIATED OIL Co
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Filing: 1947-01-15
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Granted: 1949-11-29
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Expires: 1967-01-15
Abstract
No abstract record available.
Inventors
- 👤 Anthony J Revukas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:33
CPC Classifications
C; C10; C10M; C10M1/00; C10M1/08; C10M2209/00; C10M2209/02; C10M2209/08; C10M2209/082; C10M2209/084; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/06; C10M2215/062; C10M2215/24; C10M2215/26; C10N; C10N2040/00; C10N2040/08
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) | 1952-11-28 | 1953-05-30 | 1953-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-11-28 | 1957-05-30 | 1957-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-11-28 | 1961-05-30 | 1961-11-29 | $7700.00 | Window Closed / Lapsed |