US1997841A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gear selecting and shifting mechanism
Assignee: Jones and Lamson Machine Co
•
Filing: 1933-05-15
•
Granted: 1935-04-16
•
Expires: 1953-05-15
Abstract
No abstract record available.
Inventors
- 👤 William E Twamley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 11:57
CPC Classifications
F; F16; F16H; F16H63/00; F16H63/02; F16H63/08; F16H63/16; F16H63/18; Y; Y10; Y10S; Y10S74/00; Y10S74/07; Y10T; Y10T74/00; Y10T74/19; Y10T74/19219; Y10T74/19242; Y10T74/19247; Y10T82/00; Y10T82/25; Y10T82/2552; Y10T82/2554
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1938-04-15 | 1938-10-15 | 1939-04-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1942-04-15 | 1942-10-15 | 1943-04-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1946-04-15 | 1946-10-15 | 1947-04-16 | $7700.00 | Window Closed / Lapsed |