Patent US2375602A successfully refreshed from Google Patents.
US2375602A
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Gear changing mechanism
Assignee: Sangamo Electric Co
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Filing: 1942-11-06
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Granted: 1945-05-08
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Expires: 1962-11-06
Abstract
No abstract record available.
Inventors
- 👤 Wickham Alfred Henry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:43
CPC Classifications
F; F16; F16H; F16H3/00; F16H3/02; F16H3/20; F16H3/34; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19167; Y10T74/19219; Y10T74/19293; Y10T74/19298; Y10T74/19307; Y10T74/19335; Y10T74/1934; Y10T74/1956; Y10T74/19585; Y10T74/19595; Y10T74/20; Y10T74/20012; Y10T74/20018; Y10T74/20576; Y10T74/20636
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1948-05-07 | 1948-11-06 | 1949-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1952-05-07 | 1952-11-06 | 1953-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1956-05-07 | 1956-11-06 | 1957-05-08 | $7700.00 | Window Closed / Lapsed |