US1585141A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Driving mechanism for tractors
Assignee: Individual
•
Filing: 1921-04-05
•
Granted: 1926-05-18
•
Expires: 1941-04-05
Abstract
No abstract record available.
Inventors
- 👤 John T Kerwin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 08:12
CPC Classifications
B; B60; B60K; B60K17/00; B60K17/04; B60K17/22; F; F16; F16H; F16H48/00; F16H48/06; F16H48/08; F16H48/10; F16H48/11; F16H2048/082; F16H48/38; F16H48/40; F16H2048/405
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) | 1929-05-17 | 1929-11-16 | 1930-05-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1933-05-17 | 1933-11-16 | 1934-05-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1937-05-17 | 1937-11-16 | 1938-05-18 | $7700.00 | Window Closed / Lapsed |