US2881625A
Expired / Lapsed
US
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Control apparatus for variable ratio power transmission means
Assignee: Engineering Res & Applic Ltd
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Filing: 1957-07-11
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Granted: 1959-04-14
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Expires: 1977-07-11
Abstract
No abstract record available.
Inventors
- 👤 Hodkin Richard Keith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:26
CPC Classifications
F; F16; F16H; F16H61/00; F16H61/26; F16H61/28; F16H61/32; F16H2061/2884; Y; Y10; Y10T; Y10T74/00; Y10T74/11; Y10T74/111; Y10T74/19; Y10T74/19219; Y10T74/19251; Y10T74/19256; Y10T74/1926; Y10T74/19265; Y10T74/19377; Y10T74/19414; Y10T74/19419; Y10T74/19423; Y10T74/19428; Y10T74/19437
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-04-13 | 1962-10-13 | 1963-04-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-04-13 | 1966-10-13 | 1967-04-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-04-13 | 1970-10-13 | 1971-04-14 | $7700.00 | Window Closed / Lapsed |