Patent US2657779A successfully refreshed from Google Patents.
US2657779A
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US
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Automatic gear shifting mechanism
Assignee: B J AUDETTE
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Filing: 1952-03-10
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Granted: 1953-11-03
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Expires: 1972-03-10
Abstract
No abstract record available.
Inventors
- 👤 Selmer L Wiig
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 12:57
CPC Classifications
F; F16; F16H; F16H59/00; F16H59/50; F16H59/56; F16H63/00; F16H63/02; F16H63/08; F16H63/20; Y; Y10; Y10T; Y10T74/00; Y10T74/20; Y10T74/20012; Y10T74/20018; Y10T74/20055
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1450745A
Cited
US1773216A
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US1969416A
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US2079529A
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US2293758A
Cited
US2208828A
Cited
US2554312A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-11-02 | 1957-05-04 | 1957-11-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-11-02 | 1961-05-04 | 1961-11-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-11-02 | 1965-05-04 | 1965-11-03 | $7700.00 | Window Closed / Lapsed |