Patent US2914719A successfully refreshed from Google Patents.
US2914719A
Expired / Lapsed
US
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Isolated power supply
Assignee: NEOTEC Corp A CORP OF DE
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Filing: 1957-09-13
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Granted: 1959-11-24
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Expires: 1977-09-13
Abstract
No abstract record available.
Inventors
- 👤 John F Walton
- 👤 John H Reaves
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:29
CPC Classifications
H; H01; H01F; H01F27/00; H01F27/40; H02; H02M; H02M1/00; H02M1/14; H03; H03F; H03F3/00; H03F3/34; H03F3/36
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1723584A
Cited
US1687253A
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US1692904A
Cited
US1789664A
Cited
US2028191A
Cited
US2549833A
Cited
US2652521A
Cited
US2878441A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-11-23 | 1963-05-25 | 1963-11-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-11-23 | 1967-05-25 | 1967-11-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-11-23 | 1971-05-25 | 1971-11-24 | $7700.00 | Window Closed / Lapsed |