US2451058A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Semiautomatic automotive transmission with governor-synchronized gears
Assignee: Individual
•
Filing: 1939-07-06
•
Granted: 1948-10-12
•
Expires: 1959-07-06
Abstract
No abstract record available.
Inventors
- 👤 David S Bennetch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:23
CPC Classifications
B; B60; B60W; B60W30/00; B60W30/18; B60W10/00; B60W10/04; B60W10/06; B60W10/10; B60W2710/00; B60W2710/10; B60W2710/1005; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19219; Y10T74/19251; Y10T74/19256; Y10T74/1926; Y10T74/19265; Y10T74/19284
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1185528A
Cited
US1410423A
Cited
US1702721A
Cited
US1706739A
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GB294496A
Cited
US1985762A
Cited
US1751303A
Cited
US1893644A
Cited
US2131157A
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US1903635A
Cited
US2031807A
Cited
US2120104A
Cited
US1956601A
Cited
US2062104A
Cited
US2034400A
Cited
US2163872A
Cited
US2025430A
Cited
US2052573A
Cited
US2086723A
Cited
US2118978A
Cited
US2138148A
Cited
US2286193A
Cited
US2150408A
Cited
US2234392A
Cited
US2322479A
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US2278099A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-10-12 | 1952-04-12 | 1952-10-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-10-12 | 1956-04-12 | 1956-10-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-10-12 | 1960-04-12 | 1960-10-12 | $7700.00 | Window Closed / Lapsed |