US2731001A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Engine safety shut-down device
Assignee: Motors Liquidation Co
•
Filing: 1952-12-26
•
Granted: 1956-01-17
•
Expires: 1972-12-26
Abstract
No abstract record available.
Inventors
- 👤 Dickson John
- 👤 Jr Vernon E Schafer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:46
CPC Classifications
F; F01; F01P; F01P11/00; F01P11/14; F01P11/16; F01M; F01M1/00; F01M1/18; F01M1/20; F01M1/22; F01M1/28; Y; Y10; Y10T; Y10T137/00; Y10T137/0971; Y10T137/1044
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1665885A
Cited
US1846654A
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US1936698A
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US2060187A
Cited
US2120555A
Cited
US2010960A
Cited
US2112664A
Cited
US2260576A
Cited
US2435343A
Cited
US2475343A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-01-16 | 1959-07-18 | 1960-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-01-16 | 1963-07-18 | 1964-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-01-16 | 1967-07-18 | 1968-01-17 | $7700.00 | Window Closed / Lapsed |