US2555016A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Variable-speed power transmission
Assignee: Individual
•
Filing: 1948-01-05
•
Granted: 1951-05-29
•
Expires: 1968-01-05
Abstract
No abstract record available.
Inventors
- 👤 Lev A Trofimov
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 10:25
CPC Classifications
F; F16; F16H; F16H37/00; F16H37/02; F16H37/06; F16H37/08; F16H37/0833; F16H37/084; F16H37/0846; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19642; Y10T74/19679; Y10T74/19684; Y10T74/21; Y10T74/2186
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US795386A
Cited
US1031988A
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US1392567A
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US1702627A
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US1906831A
Cited
US1909626A
Cited
DE599612C
Cited
US2164818A
Cited
US2161894A
Cited
US2270980A
Cited
US2392149A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-05-28 | 1954-11-27 | 1955-05-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-05-28 | 1958-11-27 | 1959-05-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-05-28 | 1962-11-27 | 1963-05-29 | $7700.00 | Window Closed / Lapsed |