US2497893A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Synchronized and adjustable safety clutch
Assignee: Individual
•
Filing: 1944-09-19
•
Granted: 1950-02-21
•
Expires: 1964-09-19
Abstract
No abstract record available.
Inventors
- 👤 Linahan John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:43
CPC Classifications
F; F16; F16D; F16D43/00; F16D43/02; F16D43/20; F16D43/202; F16D43/2022
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US504479A
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US659072A
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US998615A
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US902527A
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US979104A
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US1555984A
Cited
US1511651A
Cited
US1583889A
Cited
CH127842A
Cited
GB314617A
Cited
US1883164A
Cited
US1999523A
Cited
GB460681A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-02-20 | 1953-08-22 | 1954-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-02-20 | 1957-08-22 | 1958-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-02-20 | 1961-08-22 | 1962-02-21 | $7700.00 | Window Closed / Lapsed |