US2497930A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transmission control
Assignee: Ross Gear and Tool Co Inc
•
Filing: 1948-04-02
•
Granted: 1950-02-21
•
Expires: 1968-04-02
Abstract
No abstract record available.
Inventors
- 👤 William K Creson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:54
CPC Classifications
F; F16; F16H; F16H61/00; F16H61/26; F16H61/36; Y; Y10; Y10T; Y10T74/00; Y10T74/20; Y10T74/20012; Y10T74/20018; Y10T74/20049; Y10T74/2014; Y10T74/20146; Y10T74/20207; Y10T74/20256
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US648059A
Cited
US946465A
Cited
US1416672A
Cited
GB300014A
Cited
US1830797A
Cited
US1992419A
Cited
US2280047A
Cited
FR863385A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-02-20 | 1953-08-22 | 1954-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-02-20 | 1957-08-22 | 1958-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-02-20 | 1961-08-22 | 1962-02-21 | $7700.00 | Window Closed / Lapsed |