US3361238A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electromagnetic friction type power transmitting mechanism
Assignee: Twin Disc Inc
•
Filing: 1966-02-15
•
Granted: 1968-01-02
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Expires: 1986-02-15
Abstract
No abstract record available.
Inventors
- 👤 Edward C Yokel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 19:33
CPC Classifications
F; F16; F16D; F16D27/00; F16D27/10; F16D27/108; F16D27/112; F16D67/00; F16D67/02; F16D67/06; F16D2027/008
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2279986A
Cited
US2549214A
Cited
US2698679A
Cited
US3022876A
Cited
US3203279A
Cited
US3190420A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-01-01 | 1971-07-03 | 1972-01-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-01-01 | 1975-07-03 | 1976-01-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-01-01 | 1979-07-03 | 1980-01-02 | $7700.00 | Window Closed / Lapsed |