US2800208A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic clutch control system
Assignee: ZF Friedrichshafen AG
•
Filing: 1954-11-02
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Granted: 1957-07-23
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Expires: 1974-11-02
Abstract
No abstract record available.
Inventors
- 👤 Binder Richard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:24
CPC Classifications
F; F16; F16H; F16H59/00; F16H59/02; F16H59/0217; F16D; F16D48/00; F16D48/02; F16D48/04; F16D48/06; F16D48/068; F16D2048/045; F16D2500/00; F16D2500/10; F16D2500/102; F16D2500/1028; F16D2500/104; F16D2500/10406; F16D2500/10412; F16D2500/10443; F16D2500/10481; F16D2500/30; F16D2500/304; F16D2500/3041; F16D2500/30415; F16D2500/306; F16D2500/3067; F16D2500/314; F16D2500/3146; F16D2500/31466; F16D2500/50; F16D2500/502; F16D2500/50239; F16D2500/70; F16D2500/704; F16D2500/70402; F16D2500/7041; F16D2500/7042
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) | 1960-07-22 | 1961-01-21 | 1961-07-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-07-22 | 1965-01-21 | 1965-07-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-07-22 | 1969-01-21 | 1969-07-23 | $7700.00 | Window Closed / Lapsed |