Patent US3537335A successfully refreshed from Google Patents.
US3537335A
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System for automatic and semiautomatic gear change for vehicles
Assignee: Individual
•
Filing: 1968-09-10
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Granted: 1970-11-03
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Expires: 1988-09-10
Abstract
No abstract record available.
Inventors
- 👤 Fernando Ezpeleta Aizpiri
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:52
CPC Classifications
F; F16; F16H; F16H3/00; F16H3/02; F16H3/08; F16H3/087; F16H3/093; F16H3/097; B; B60; B60W; B60W30/00; B60W30/18; B60W30/1819; F16H3/091; F16H3/0915; B60K; B60K2702/00; B60K2702/08; B60K2702/10; B60K2702/16; B60K2702/18; F16H2003/0807; F16H2200/00; F16H2200/003; F16H2200/0056; F16H2200/0065; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19219; Y10T74/19233; Y10T74/19251; Y10T74/19256; Y10T74/1926; Y10T74/19265; Y10T74/19293; Y10T74/19298; Y10T74/19326
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-11-02 | 1974-05-04 | 1974-11-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-11-02 | 1978-05-04 | 1978-11-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-11-02 | 1982-05-04 | 1982-11-03 | $7700.00 | Window Closed / Lapsed |