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Patent US3538440A successfully refreshed from Google Patents.
US3538440A
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US
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Voltage detector for shielded conductor providing substantially constant output voltage over wide range of input voltage
Assignee: Westinghouse Electric Corp
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Filing: 1968-08-30
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Granted: 1970-11-03
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Expires: 1988-08-30
Abstract
No abstract record available.
Inventors
- 👤 Dudley L Galloway
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 07:51
CPC Classifications
G; G01; G01R; G01R19/00; G01R19/145; G01R19/155
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2405121A
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US2443094A
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US2808566A
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US2854651A
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US2789254A
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US3311817A
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US3346805A
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US3412392A
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US3443158A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-11-02 | 1974-05-04 | 1974-11-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-11-02 | 1978-05-04 | 1978-11-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-11-02 | 1982-05-04 | 1982-11-03 | $7700.00 | Window Closed / Lapsed |