Patent US2955675A successfully refreshed from Google Patents.
US2955675A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Engine lubricating system
Assignee: Motors Liquidation Co
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Filing: 1957-05-06
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Granted: 1960-10-11
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Expires: 1977-05-06
Abstract
No abstract record available.
Inventors
- 👤 Clayton B Leach
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 10:56
CPC Classifications
F; F16; F16C; F16C3/00; F16C3/04; F16C3/06; F16C3/14; F01; F01M; F01M1/00; F01M1/06; F02; F02B; F02B75/00; F02B75/16; F02B75/18; F02B75/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1253940A
Cited
US1909965A
Cited
US2039942A
Cited
US2177724A
Cited
US2501235A
Cited
US2728413A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-10-11 | 1964-04-11 | 1964-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-10-11 | 1968-04-11 | 1968-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-10-11 | 1972-04-11 | 1972-10-11 | $7700.00 | Window Closed / Lapsed |