US2522377A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Clutch and brake mechanism for cathead assembly
Assignee: Individual
•
Filing: 1946-08-15
•
Granted: 1950-09-12
•
Expires: 1966-08-15
Abstract
No abstract record available.
Inventors
- 👤 Benjamin F Kelley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:45
CPC Classifications
F; F16; F16D; F16D67/00; F16D67/02; B; B66; B66D; B66D5/00; B66D5/02; B66D5/24; B66D5/26; B66D2700/00; B66D2700/03; B66D2700/035; Y; Y10; Y10S; Y10S254/00; Y10S254/901
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1625769A
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US1683715A
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US1579903A
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US1912645A
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US2189373A
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US2290735A
Cited
US2348891A
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US2355861A
Cited
US2391939A
Cited
US2446138A
Cited
US2449893A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-09-11 | 1954-03-13 | 1954-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-09-11 | 1958-03-13 | 1958-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-09-11 | 1962-03-13 | 1962-09-12 | $7700.00 | Window Closed / Lapsed |