Patent US2939345A successfully refreshed from Google Patents.
US2939345A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Variable-speed power transmission
Assignee: Curtiss Wright Corp
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Filing: 1959-08-26
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Granted: 1960-06-07
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Expires: 1979-08-26
Abstract
No abstract record available.
Inventors
- 👤 William E Burns
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:05
CPC Classifications
F; F16; F16H; F16H15/00; F16H15/02; F16H15/04; F16H15/06; F16H15/16; F16H15/18; F16H15/22; F16H15/08; F16H15/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-06-07 | 1963-12-07 | 1964-06-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-07 | 1967-12-07 | 1968-06-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-07 | 1971-12-07 | 1972-06-07 | $7700.00 | Window Closed / Lapsed |