US2139560A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Variable speed transmission
Assignee: Individual
•
Filing: 1937-02-09
•
Granted: 1938-12-06
•
Expires: 1957-02-09
Abstract
No abstract record available.
Inventors
- 👤 Gordon L Olson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 02:29
CPC Classifications
F; F16; F16H; F16H61/00; F16H61/66; F16H61/664; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/1956; Y10T74/19585; Y10T74/19642; Y10T74/1966; Y10T74/19665; Y10T74/1967; Y10T74/19698; Y10T74/19828
Claims Analysis
Total Claims: 0
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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) | 1941-12-05 | 1942-06-06 | 1942-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1945-12-05 | 1946-06-06 | 1946-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1949-12-05 | 1950-06-06 | 1950-12-06 | $7700.00 | Window Closed / Lapsed |