US2686582A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reversible drive mechanism
Assignee: Duro Metal Products Co
•
Filing: 1952-03-22
•
Granted: 1954-08-17
•
Expires: 1972-03-22
Abstract
No abstract record available.
Inventors
- 👤 William H Odlum
- 👤 William F Hosford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 11:39
CPC Classifications
B; B25; B25B; B25B13/00; B25B13/46; B25B13/461; B25B13/462; B25B13/465; Y; Y10; Y10T; Y10T74/00; Y10T74/15; Y10T74/1558; Y10T74/1577; Y10T74/1579
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1995009A
Cited
US1957462A
Cited
US2103556A
Cited
US2126843A
Cited
US2157574A
Cited
US2571574A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-08-16 | 1958-02-15 | 1958-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-08-16 | 1962-02-15 | 1962-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-08-16 | 1966-02-15 | 1966-08-17 | $7700.00 | Window Closed / Lapsed |