Patent US2392520A successfully refreshed from Google Patents.
US2392520A
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US
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Combined hydromechanical gear
Assignee: Individual
•
Filing: 1941-08-05
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Granted: 1946-01-08
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Expires: 1961-08-05
Abstract
No abstract record available.
Inventors
- 👤 Benz Helmut
- 👤 Kugel Fritz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:59
CPC Classifications
F; F16; F16H; F16H47/00; F16H47/06; F16D; F16D23/00; F16D23/02; F16D23/04; F16D23/06; F16H45/00; F16H45/02; Y; Y10; Y10S; Y10S74/00; Y10S74/02; Y10T; Y10T74/00; Y10T74/18; Y10T74/18056; Y10T74/18216; Y10T74/18224; Y10T74/19; Y10T74/19149; Y10T74/19158; Y10T74/19163; Y10T74/19219; Y10T74/19251; Y10T74/19256; Y10T74/1926; Y10T74/19265; Y10T74/19284
Claims Analysis
Total Claims: 0
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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) | 1949-01-07 | 1949-07-09 | 1950-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1953-01-07 | 1953-07-09 | 1954-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1957-01-07 | 1957-07-09 | 1958-01-08 | $7700.00 | Window Closed / Lapsed |