US2656174A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Governor for prime mover with compressed air control for adjusting it to a wide range of speeds
Assignee: Standard Oil Development Co
•
Filing: 1950-11-13
•
Granted: 1953-10-20
•
Expires: 1970-11-13
Abstract
No abstract record available.
Inventors
- 👤 Robert R Crookston
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 16:09
CPC Classifications
G; G05; G05D; G05D13/00; F; F02; F02D; F02D1/00; F02D2700/00; F02D2700/02; F02D2700/0269; F02D2700/0282; F02D2700/0284; F02D2700/0292; Y; Y10; Y10T; Y10T137/00; Y10T137/0971; Y10T137/1044
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1127012A
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US1600542A
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US1891668A
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US2227427A
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US2201682A
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US2397876A
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US2332925A
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US2254970A
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US2378558A
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US2364115A
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US2590940A
Cited
US2481020A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-10-19 | 1957-04-20 | 1957-10-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-10-19 | 1961-04-20 | 1961-10-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-10-19 | 1965-04-20 | 1965-10-20 | $7700.00 | Window Closed / Lapsed |