US2431494A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Variable-speed transmission
Assignee: Individual
•
Filing: 1945-06-19
•
Granted: 1947-11-25
•
Expires: 1965-06-19
Abstract
No abstract record available.
Inventors
- 👤 Robert D Morse
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:39
CPC Classifications
F; F16; F16H; F16H55/00; F16H55/32; F16H55/52; F16H55/56; F16H9/00; F16H9/02; F16H9/04; F16H9/12; F16H9/16; F16H2009/163
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US516197A
Cited
US583402A
Cited
GB154844A
Cited
US1913226A
Cited
US1993547A
Cited
US2101845A
Cited
US2158047A
Cited
US2348994A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-11-24 | 1951-05-26 | 1951-11-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-11-24 | 1955-05-26 | 1955-11-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-11-24 | 1959-05-26 | 1959-11-25 | $7700.00 | Window Closed / Lapsed |