Patent US2874804A successfully refreshed from Google Patents.
US2874804A
Expired / Lapsed
US
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Engine oil pan and dry sump lubrication system
Assignee: Continental Motors Corp
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Filing: 1956-09-24
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Granted: 1959-02-24
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Expires: 1976-09-24
Abstract
No abstract record available.
Inventors
- 👤 Herbert H Haas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 05:08
CPC Classifications
F; F01; F01M; F01M11/00; F01M11/06; F01M11/062; F01M11/065; F01M1/00; F01M1/12; F01M2001/126; F01M11/0004; F01M2011/0037; F01M2011/0041; F01M2011/068
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) | 1962-02-23 | 1962-08-25 | 1963-02-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-02-23 | 1966-08-25 | 1967-02-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-02-23 | 1970-08-25 | 1971-02-24 | $7700.00 | Window Closed / Lapsed |