US2825245A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Variable ratio power transmission apparatus
Assignee: Hobbs Transmission Ltd
•
Filing: 1953-08-24
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Granted: 1958-03-04
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Expires: 1973-08-24
Abstract
No abstract record available.
Inventors
- 👤 Hobbs Howard Frederick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:04
CPC Classifications
F; F16; F16H; F16H3/00; F16H3/44; F16H3/62; F16H3/66; F16H3/663; F16H2200/00; F16H2200/20; F16H2200/2002; F16H2200/2005
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1256373A
Cited
US2220174A
Cited
DE866747C
Cited
US2605652A
Cited
US2623412A
Cited
US2761333A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-03-03 | 1961-09-02 | 1962-03-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-03-03 | 1965-09-02 | 1966-03-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-03-03 | 1969-09-02 | 1970-03-04 | $7700.00 | Window Closed / Lapsed |