US2520004A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sprag type overrunning clutch
Assignee: Northern Ordnance Inc
•
Filing: 1946-12-23
•
Granted: 1950-08-22
•
Expires: 1966-12-23
Abstract
No abstract record available.
Inventors
- 👤 John T Gondek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:19
CPC Classifications
F; F16; F16D; F16D41/00; F16D41/06; F16D41/069; F16D41/07; F16D41/076
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2054222A
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US1952461A
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US1923283A
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US2035925A
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US2167641A
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US2217048A
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US2300223A
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US2410818A
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US2370800A
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US2388424A
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US2366843A
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US2408969A
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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) | 1953-08-21 | 1954-02-20 | 1954-08-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-08-21 | 1958-02-20 | 1958-08-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-08-21 | 1962-02-20 | 1962-08-22 | $7700.00 | Window Closed / Lapsed |