US2957460A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Internal combustion engine
Assignee: Motors Liquidation Co
•
Filing: 1957-09-27
•
Granted: 1960-10-25
•
Expires: 1977-09-27
Abstract
No abstract record available.
Inventors
- 👤 Adelbert E Kolbe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 02:44
CPC Classifications
F; F02; F02B; F02B75/00; F02B75/16; F02B75/18; F02B75/22; F02B2275/00; F02B2275/34
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1698995A
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US1817390A
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US2028760A
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US2309291A
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US2428886A
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US2766739A
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US2738780A
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US2669227A
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US2632432A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-10-25 | 1964-04-25 | 1964-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-10-25 | 1968-04-25 | 1968-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-10-25 | 1972-04-25 | 1972-10-25 | $7700.00 | Window Closed / Lapsed |