US3403302A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Commutating two-coil control for electromagnetically-operated device
Assignee: Eaton Corp
•
Filing: 1965-06-16
•
Granted: 1968-09-24
•
Expires: 1985-06-16
Abstract
No abstract record available.
Inventors
- 👤 James A Mason
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 09:24
CPC Classifications
H; H01; H01F; H01F7/00; H01F7/06; H01F7/08; H01F7/18; H01F7/1805; H01F7/1827
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1817431A
Cited
US2778978A
Cited
US3108208A
Cited
US3113293A
Cited
US3182222A
Cited
US3295421A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-09-24 | 1972-03-25 | 1972-09-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-09-24 | 1976-03-25 | 1976-09-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-09-24 | 1980-03-25 | 1980-09-24 | $7700.00 | Window Closed / Lapsed |