US2981846A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control circuit for electromagnetic clutches and like devices
Assignee: Valeo SE
•
Filing: 1958-06-05
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Granted: 1961-04-25
•
Expires: 1978-06-05
Abstract
No abstract record available.
Inventors
- 👤 Maurice Jean
- 👤 Rist Michel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 22:34
CPC Classifications
F; F16; F16D; F16D48/00; F16D48/06; F16D48/064; F16D2500/00; F16D2500/10; F16D2500/102; F16D2500/1021; F16D2500/1022; F16D2500/104; F16D2500/10406; F16D2500/10412; F16D2500/30; F16D2500/304; F16D2500/30406; F16D2500/306; F16D2500/3067; F16D2500/31; F16D2500/3108; F16D2500/70; F16D2500/704; F16D2500/70402; F16D2500/70418; F16D2500/7042; F16D2500/71; F16D2500/7105; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19219; Y10T74/19377; Y10T74/19414; Y10T74/19419; Y10T74/19423; Y10T74/19428; Y10T74/19437
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) | 1964-04-24 | 1964-10-24 | 1965-04-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-04-24 | 1968-10-24 | 1969-04-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-04-24 | 1972-10-24 | 1973-04-25 | $7700.00 | Window Closed / Lapsed |