Patent US2693519A successfully refreshed from Google Patents.
US2693519A
Expired / Lapsed
US
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Circuit interrupter
Assignee: Westinghouse Electric Corp
•
Filing: 1950-07-15
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Granted: 1954-11-02
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Expires: 1970-07-15
Abstract
No abstract record available.
Inventors
- 👤 Benjamin P Baker
- 👤 Winthrop M Leeds
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 02:19
CPC Classifications
H; H01; H01H; H01H33/00; H01H33/02; H01H33/53; H01H33/55
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US655979A
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US1156542A
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US1394951A
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US1401988A
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US1755068A
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US1907827A
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US1957985A
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Cited
US2111954A
Cited
US2180561A
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GB626198A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-11-01 | 1958-05-03 | 1958-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-11-01 | 1962-05-03 | 1962-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-11-01 | 1966-05-03 | 1966-11-02 | $7700.00 | Window Closed / Lapsed |