US2729980A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid transmission with subsequent multi-speed change gear transmission
Assignee: AG fur UNTERNEHMUNGEN DER EISEN- und STAHLINDUSTRIE
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Filing: 1954-06-18
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Granted: 1956-01-10
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Expires: 1974-06-18
Abstract
No abstract record available.
Inventors
- 👤 Lammerz Ernst
- 👤 Rambausek Hugo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:47
CPC Classifications
F; F16; F16H; F16H47/00; F16H47/06; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19149; Y10T74/19219; Y10T74/19377; Y10T74/19386; Y10T74/194; Y10T74/19414; Y10T74/19419; Y10T74/19442; Y10T74/19447
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-01-09 | 1959-07-11 | 1960-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-01-09 | 1963-07-11 | 1964-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-01-09 | 1967-07-11 | 1968-01-10 | $7700.00 | Window Closed / Lapsed |