Patent EP0163453A1 successfully refreshed from Google Patents.
US3040249A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Low voltage tester
Assignee: Westinghouse Electric Corp
•
Filing: 1958-10-01
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Granted: 1962-06-19
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Expires: 1978-10-01
Abstract
No abstract record available.
Inventors
- 👤 Joseph G Schwarckopf
- 👤 Karl R Humes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:46
CPC Classifications
G; G01; G01R; G01R31/00; G01R31/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2379955A
Cited
US2696739A
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GB794258A
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US2799013A
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US2841765A
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US2916697A
Cited
GB797542A
Cited
US2901740A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-06-18 | 1965-12-18 | 1966-06-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-06-18 | 1969-12-18 | 1970-06-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-06-18 | 1973-12-18 | 1974-06-19 | $7700.00 | Window Closed / Lapsed |