Patent US2775742A successfully refreshed from Google Patents.
US2775742A
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US
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Electromagnet coil assembly
Assignee: Etc Inc
•
Filing: 1952-03-06
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Granted: 1956-12-25
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Expires: 1972-03-06
Abstract
No abstract record available.
Inventors
- 👤 Edward A Bogue
- 👤 Charles W Musser
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 09:34
CPC Classifications
H; H01; H01F; H01F5/00; H01F5/04; H01F5/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1702159A
Cited
US1836948A
Cited
US1939808A
Cited
US2264832A
Cited
US2194703A
Cited
US2249057A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-12-25 | 1960-06-25 | 1960-12-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-12-25 | 1964-06-25 | 1964-12-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-12-25 | 1968-06-25 | 1968-12-25 | $7700.00 | Window Closed / Lapsed |