Patent US3057983A successfully refreshed from Google Patents.
US3057983A
Expired / Lapsed
US
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Circuit interrupter
Assignee: Westinghouse Electric Corp
•
Filing: 1959-01-23
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Granted: 1962-10-09
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Expires: 1979-01-23
Abstract
No abstract record available.
Inventors
- 👤 Russell N Yeckley
- 👤 Sucha Joseph
- 👤 Mellon National Bank And Tr Co
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 22:42
CPC Classifications
H; H01; H01H; H01H33/00; H01H33/02; H01H33/53; H01H33/56; H01H33/562
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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GB609207A
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US2473892A
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US2525470A
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GB605163A
Cited
GB626842A
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US2675446A
Cited
US2668217A
Cited
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Cited
US2816991A
Cited
US2824937A
Cited
US2866045A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-10-08 | 1966-04-09 | 1966-10-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-10-08 | 1970-04-09 | 1970-10-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-10-08 | 1974-04-09 | 1974-10-09 | $7700.00 | Window Closed / Lapsed |