US2897690A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multi-speed gear transmission
Assignee: ZF Friedrichshafen AG
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Filing: 1956-11-28
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Granted: 1959-08-04
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Expires: 1976-11-28
Abstract
No abstract record available.
Inventors
- 👤 Maier Albert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 16:24
CPC Classifications
F; F16; F16H; F16H47/00; F16H47/06; F16H47/07; F16H2200/00; F16H2200/003; F16H2200/0039; F16H2200/0047; F16H3/00; F16H3/02; F16H3/08; F16H3/087; F16H3/093; F16H3/097; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19023; Y10T74/19037; Y10T74/19149; Y10T74/19219; Y10T74/19228
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) | 1962-08-03 | 1963-02-02 | 1963-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-08-03 | 1967-02-02 | 1967-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-08-03 | 1971-02-02 | 1971-08-04 | $7700.00 | Window Closed / Lapsed |