US2498244A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Winch driving mechanism
Assignee: Individual
•
Filing: 1944-09-14
•
Granted: 1950-02-21
•
Expires: 1964-09-14
Abstract
No abstract record available.
Inventors
- 👤 Bromfield Isadore
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 06:35
CPC Classifications
B; B63; B63B; B63B21/00; B63B21/16; B66; B66D; B66D1/00; B66D1/28; B66D1/40; B66D1/48; B66D2700/00; B66D2700/01; B66D2700/0108
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US748488A
Cited
US844661A
Cited
US761459A
Cited
US934104A
Cited
US2225206A
Cited
US2267114A
Cited
US2333863A
Cited
US2401103A
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 |