US2941421A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Variable speed transmission suitable for reversing the rotation sense
Assignee: Individual
•
Filing: 1957-10-08
•
Granted: 1960-06-21
•
Expires: 1977-10-08
Abstract
No abstract record available.
Inventors
- 👤 Plotti Riccardo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 14:16
CPC Classifications
F; F16; F16H; F16H9/00; F16H9/26; F16D; F16D67/00; F16H61/00; F16H61/02; F16H61/0293; F16H2716/00; F16H2716/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US795386A
Cited
US863317A
Cited
US1203265A
Cited
US1344366A
Cited
US2158367A
Cited
FR899231A
Cited
US2440625A
Cited
US2529743A
Cited
US2580656A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-06-21 | 1963-12-21 | 1964-06-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-21 | 1967-12-21 | 1968-06-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-21 | 1971-12-21 | 1972-06-21 | $7700.00 | Window Closed / Lapsed |