US2223711A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Variable speed mechanism
Assignee: GUY H HALL
•
Filing: 1935-12-10
•
Granted: 1940-12-03
•
Expires: 1955-12-10
Abstract
No abstract record available.
Inventors
- 👤 Stover C Winger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 09:19
CPC Classifications
F; F16; F16H; F16H29/00; F16H15/00; F16H29/12; F16H29/16; Y; Y10; Y10T; Y10T74/00; Y10T74/15; Y10T74/1503; Y10T74/1508; Y10T74/151; Y10T74/21; Y10T74/2173; Y10T74/2179; Y10T74/2183
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) | 1943-12-03 | 1944-06-03 | 1944-12-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1947-12-03 | 1948-06-03 | 1948-12-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1951-12-03 | 1952-06-03 | 1952-12-03 | $7700.00 | Window Closed / Lapsed |