US2769063A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Circuit interrupting device
Assignee: Westinghouse Electric Corp
•
Filing: 1951-10-26
•
Granted: 1956-10-30
•
Expires: 1971-10-26
Abstract
No abstract record available.
Inventors
- 👤 Harry J Lingal
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:26
CPC Classifications
H; H01; H01H; H01H33/00; H01H33/02; H01H33/04; H01H33/12; H01H33/121; H01H33/125; H01H33/126; H01H1/00; H01H1/12; H01H1/14; H01H1/16; H01H3/00; H01H3/22; H01H3/30; H01H33/53; H01H33/56; H01H33/565; H01H33/60; H01H33/64; H01H33/70; H01H33/88; H01H33/90; H01H33/91
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1963418A
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US2172225A
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US2304529A
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US2351826A
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US2334901A
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US2480622A
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US2611048A
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US2562160A
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US2629791A
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US2650964A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-10-30 | 1960-04-30 | 1960-10-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-10-30 | 1964-04-30 | 1964-10-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-10-30 | 1968-04-30 | 1968-10-30 | $7700.00 | Window Closed / Lapsed |