US2690680A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multiratio change speed gear
Assignee: ZF Friedrichshafen AG
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Filing: 1951-09-05
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Granted: 1954-10-05
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Expires: 1971-09-05
Abstract
No abstract record available.
Inventors
- 👤 Maier Albert
- 👤 Kiechle Julius
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:49
CPC Classifications
F; F16; F16H; F16H3/00; F16H3/02; F16H3/08; F16H3/10; F16H37/00; F16H2702/00; Y; Y10; Y10T; Y10T74/00; Y10T74/19; 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) | 1957-10-04 | 1958-04-05 | 1958-10-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-10-04 | 1962-04-05 | 1962-10-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-10-04 | 1966-04-05 | 1966-10-05 | $7700.00 | Window Closed / Lapsed |