US2666154A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reversible radial air gap eddy current clutch
Assignee: Individual
•
Filing: 1951-05-17
•
Granted: 1954-01-12
•
Expires: 1971-05-17
Abstract
No abstract record available.
Inventors
- 👤 Alfred S Gutman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 09:06
CPC Classifications
H; H02; H02K; H02K49/00; H02K49/02; H02K49/04; H02K49/043
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US803322A
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US919460A
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US1756671A
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FR752796A
Cited
US2289330A
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US2313466A
Cited
US2305963A
Cited
US2357516A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-01-11 | 1957-07-13 | 1958-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-01-11 | 1961-07-13 | 1962-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-01-11 | 1965-07-13 | 1966-01-12 | $7700.00 | Window Closed / Lapsed |