US2561159A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-locking clutch
Assignee: Individual
•
Filing: 1944-09-14
•
Granted: 1951-07-17
•
Expires: 1964-09-14
Abstract
No abstract record available.
Inventors
- 👤 Cecil E Walton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 10:15
CPC Classifications
F; F16; F16D; F16D41/00; F16D41/06; F16D41/08; F16D41/10; F16D41/105; F16B; F16B1/00; F16B1/02; F16B1/04; Y; Y10; Y10T; Y10T74/00; Y10T74/20; Y10T74/20576; Y10T74/20636; Y10T74/2066
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1015861A
Cited
US945909A
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US1457694A
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US1715274A
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US1607907A
Cited
US1942472A
Cited
US1793228A
Cited
US1996365A
Cited
US2052094A
Cited
US2260119A
Cited
US2370976A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-07-16 | 1955-01-15 | 1955-07-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-07-16 | 1959-01-15 | 1959-07-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-07-16 | 1963-01-15 | 1963-07-17 | $7700.00 | Window Closed / Lapsed |