Patent US2534093A successfully refreshed from Google Patents.
US2534093A
Expired / Lapsed
US
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Intermittently engaged clutch variable power transmission
Assignee: Individual
•
Filing: 1947-05-19
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Granted: 1950-12-12
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Expires: 1967-05-19
Abstract
No abstract record available.
Inventors
- 👤 George W Willard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 12:49
CPC Classifications
F; F16; F16H; F16H29/00; F16H29/02; F16H29/08; Y; Y10; Y10T; Y10T74/00; Y10T74/15; Y10T74/1503; Y10T74/1508; Y10T74/1511; Y10T74/1513; Y10T74/1524; Y10T74/18; Y10T74/18056; Y10T74/18232; Y10T74/1824
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US490754A
Cited
FR355976A
Cited
US1432853A
Cited
US1516734A
Cited
AT102171B
Cited
GB267381A
Cited
FR779688A
Cited
FR855859A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-12-11 | 1954-06-12 | 1954-12-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-12-11 | 1958-06-12 | 1958-12-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-12-11 | 1962-06-12 | 1962-12-12 | $7700.00 | Window Closed / Lapsed |