US2520194A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Higher speed gear
Assignee: Individual
•
Filing: 1947-08-09
•
Granted: 1950-08-29
•
Expires: 1967-08-09
Abstract
No abstract record available.
Inventors
- 👤 Roy E Bennett
- 👤 David A Bennett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:00
CPC Classifications
F; F16; F16H; F16H63/00; F16H63/02; F16H63/30; F16H37/00; F16H57/00; F16H57/02; F16H57/023; F16H2057/02013; F16H2057/02039; F16H2057/02043; F16H2057/02056; F16H2702/00; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19167; Y10T74/19219
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB190808791A
Cited
US1550058A
Cited
US1859788A
Cited
US1961809A
Cited
US2090154A
Cited
US2046429A
Cited
US2369078A
Cited
US2934778A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-08-28 | 1954-02-27 | 1954-08-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-08-28 | 1958-02-27 | 1958-08-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-08-28 | 1962-02-27 | 1962-08-29 | $7700.00 | Window Closed / Lapsed |