Patent US2794071A successfully refreshed from Google Patents.
US2794071A
Expired / Lapsed
US
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Power line fault locator
Assignee: TDK Micronas GmbH
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Filing: 1951-10-20
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Granted: 1957-05-28
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Expires: 1971-10-20
Abstract
No abstract record available.
Inventors
- 👤 Robert W Hughes
- 👤 Weintraub Nelson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:14
CPC Classifications
H; H04; H04M; H04M11/00; H04M11/04; G; G01; G01R; G01R31/00; G01R31/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2381847A
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US2438902A
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US2429613A
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US2547001A
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US2468059A
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US2510273A
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US2530957A
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US2535446A
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US2628267A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-05-27 | 1960-11-26 | 1961-05-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-05-27 | 1964-11-26 | 1965-05-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-05-27 | 1968-11-26 | 1969-05-28 | $7700.00 | Window Closed / Lapsed |