US2451455A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Crank arm and driving block means
Assignee: JOHN WOOD MANUFACTURING COMPANY Inc
•
Filing: 1945-06-23
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Granted: 1948-10-12
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Expires: 1965-06-23
Abstract
No abstract record available.
Inventors
- 👤 David S Willson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 08:50
CPC Classifications
F; F16; F16H; F16H23/00; F16H23/02; G; G01; G01F; G01F3/00; G01F3/02; G01F3/04; G01F3/14; G01F3/16; G01F3/18; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18056; Y10T74/18296; Y10T74/18336
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1929406A
Cited
US2237518A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-10-12 | 1952-04-12 | 1952-10-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-10-12 | 1956-04-12 | 1956-10-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-10-12 | 1960-04-12 | 1960-10-12 | $7700.00 | Window Closed / Lapsed |