US2576156A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid type variable-speed power transmission
Assignee: Individual
•
Filing: 1945-05-09
•
Granted: 1951-11-27
•
Expires: 1965-05-09
Abstract
No abstract record available.
Inventors
- 👤 Lev A Trofimov
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 16:45
CPC Classifications
F; F16; F16D; F16D35/00; F16D35/005; F16H; F16H3/00; F16H2712/00; F16H2712/04; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19149; Y10T74/19158; Y10T74/19219; Y10T74/19377; Y10T74/19414; Y10T74/19484; Y10T74/19488
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US923565A
Cited
US1414622A
Cited
DE429837C
Cited
US1862802A
Cited
DE629716C
Cited
FR776210A
Cited
US2079724A
Cited
US2144596A
Cited
US2151075A
Cited
US2405135A
Cited
US2313132A
Cited
US2361385A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-11-26 | 1955-05-28 | 1955-11-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-11-26 | 1959-05-28 | 1959-11-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-11-26 | 1963-05-28 | 1963-11-27 | $7700.00 | Window Closed / Lapsed |