US1978439A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Variable transmission
Assignee: Individual
•
Filing: 1930-04-01
•
Granted: 1934-10-30
•
Expires: 1950-04-01
Abstract
No abstract record available.
Inventors
- 👤 John S Sharpe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 04:55
CPC Classifications
F; F16; F16H; F16H15/00; F16H15/48; F16H15/50; F16H15/52; F16H37/00; F16H37/02; F16H37/06; F16H37/08; F16H37/0833; F16H37/084; F16H37/086; F16H15/02; F16H15/04; F16H15/06; F16H15/32; F16H15/36; F16H15/38; F16H2015/383
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) | 1937-10-29 | 1938-04-30 | 1938-10-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1941-10-29 | 1942-04-30 | 1942-10-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1945-10-29 | 1946-04-30 | 1946-10-30 | $7700.00 | Window Closed / Lapsed |