US2744637A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Winches
Assignee: ACE Machinery Ltd
•
Filing: 1952-12-02
•
Granted: 1956-05-08
•
Expires: 1972-12-02
Abstract
No abstract record available.
Inventors
- 👤 Stewart John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 07:57
CPC Classifications
B; B66; B66C; B66C23/00; B66C23/18; B66C23/20; B66C23/203
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US754585A
Cited
US1478636A
Cited
US1443376A
Cited
US1834985A
Cited
US1874189A
Cited
US1873433A
Cited
US2082017A
Cited
US2203113A
Cited
US2557852A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-05-08 | 1959-11-07 | 1960-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-08 | 1963-11-07 | 1964-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-08 | 1967-11-07 | 1968-05-08 | $7700.00 | Window Closed / Lapsed |