US2637427A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid operated coupling with detachable shoes
Assignee: Aerojet Rocketdyne Holdings Inc
•
Filing: 1948-03-12
•
Granted: 1953-05-05
•
Expires: 1968-03-12
Abstract
No abstract record available.
Inventors
- 👤 Herman T Kraft
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 10:56
CPC Classifications
F; F16; F16D; F16D25/00; F16D25/04; F16D25/042; F16D25/046
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2251443A
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US2251444A
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US2174724A
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US2245791A
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US2187226A
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US2139409A
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US2283325A
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US2229922A
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US2246979A
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US2311113A
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US2256431A
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US2251445A
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US2354174A
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US2367048A
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US2434761A
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US2418099A
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US2434762A
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US2499585A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-05-04 | 1956-11-03 | 1957-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-05-04 | 1960-11-03 | 1961-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-05-04 | 1964-11-03 | 1965-05-05 | $7700.00 | Window Closed / Lapsed |