Patent US2616006A successfully refreshed from Google Patents.
US2616006A
Expired / Lapsed
US
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Air break circuit interrupter
Assignee: Westinghouse Electric Corp
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Filing: 1947-02-28
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Granted: 1952-10-28
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Expires: 1967-02-28
Abstract
No abstract record available.
Inventors
- 👤 Russell E Frink
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 21:34
CPC Classifications
H; H01; H01H; H01H9/00; H01H9/30; H01H9/34
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1497424A
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US2051196A
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FR797227A
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US2138391A
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US2243039A
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US2311690A
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US2244061A
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US2372045A
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US2408352A
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US2443650A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-10-28 | 1956-04-28 | 1956-10-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-10-28 | 1960-04-28 | 1960-10-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-10-28 | 1964-04-28 | 1964-10-28 | $7700.00 | Window Closed / Lapsed |