US2771664A
Expired / Lapsed
US
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Magnetic cores for electrical inductrion apparatus and the method of producing same
Assignee: Moloney Electric Co
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Filing: 1952-03-14
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Granted: 1956-11-27
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Expires: 1972-03-14
Abstract
No abstract record available.
Inventors
- 👤 Clarence G Duenke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:00
CPC Classifications
H; H01; H01F; H01F27/00; H01F27/24; H01F27/25; H01F41/00; H01F41/02; H01F41/0206; H01F41/0213; H02; H02K; H02K1/00; H02K1/06; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/4902; Y10T29/49071
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) | 1959-11-27 | 1960-05-28 | 1960-11-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-11-27 | 1964-05-28 | 1964-11-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-11-27 | 1968-05-28 | 1968-11-27 | $7700.00 | Window Closed / Lapsed |