US2488540A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Marine reduction reverse gear
Assignee: WESTERN GEAR WORKS
•
Filing: 1944-01-24
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Granted: 1949-11-22
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Expires: 1964-01-24
Abstract
No abstract record available.
Inventors
- 👤 Leon W Hollingsworth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 13:31
CPC Classifications
B; B63; B63H; B63H23/00; B63H23/02; B63H23/08; B63H23/30; F; F16; F16H; F16H1/00; F16H1/02; F16H1/04; F16H1/06; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19219; Y10T74/19233; Y10T74/19377; Y10T74/19414; Y10T74/19419; Y10T74/19423; Y10T74/19428; Y10T74/19433; Y10T74/19484; Y10T74/19488
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-11-21 | 1953-05-23 | 1953-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-11-21 | 1957-05-23 | 1957-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-11-21 | 1961-05-23 | 1961-11-22 | $7700.00 | Window Closed / Lapsed |