US2273807A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Speed-change gearing
Assignee: Giddings and Lewis LLC
•
Filing: 1940-04-15
•
Granted: 1942-02-17
•
Expires: 1960-04-15
Abstract
No abstract record available.
Inventors
- 👤 Raymond M Woytych
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:59
CPC Classifications
F; F16; F16H; F16H63/00; F16H63/02; F16H63/04; F16H3/00; F16H3/02; F16H3/08; F16H3/083; F16H63/30; F16H2063/3093; F16H2063/3096; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19167; Y10T74/19219; Y10T74/19377; Y10T74/19414; Y10T74/19419; Y10T74/19442; Y10T74/19451; Y10T74/1946; Y10T74/19484; Y10T74/19493; Y10T82/00; Y10T82/25; Y10T82/2529
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) | 1945-02-16 | 1945-08-18 | 1946-02-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1949-02-16 | 1949-08-18 | 1950-02-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1953-02-16 | 1953-08-18 | 1954-02-17 | $7700.00 | Window Closed / Lapsed |