Patent US3232147A successfully refreshed from Google Patents.
US1979488A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic pneumatic gear shift
Assignee: Individual
•
Filing: 1932-04-08
•
Granted: 1934-11-06
•
Expires: 1952-04-08
Abstract
No abstract record available.
Inventors
- 👤 Horacio E Perez
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 06:06
CPC Classifications
B; B60; B60W; B60W30/00; B60W30/18; B60W10/00; B60W10/02; B60W10/10; B60W10/11; B60W2540/00; B60W2540/12; B60W2710/00; B60W2710/02; B60W2710/021; Y; Y10; Y10S; Y10S74/00; Y10S74/02; Y10T; Y10T74/00; Y10T74/18; Y10T74/18056; Y10T74/18296; Y10T74/18304; Y10T74/18312; Y10T74/1832; Y10T74/18856; Y10T74/18864; Y10T74/18888; Y10T74/1892; Y10T74/1896; Y10T74/19; Y10T74/19219; Y10T74/19242; Y10T74/19247; Y10T74/19251; Y10T74/19256; Y10T74/1926; Y10T74/19265
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1937-11-05 | 1938-05-07 | 1938-11-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1941-11-05 | 1942-05-07 | 1942-11-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1945-11-05 | 1946-05-07 | 1946-11-06 | $7700.00 | Window Closed / Lapsed |