Patent US2785345A successfully refreshed from Google Patents.
US2785345A
Expired / Lapsed
US
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Circuit interrupters
Assignee: Westinghouse Electric Corp
•
Filing: 1953-11-27
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Granted: 1957-03-12
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Expires: 1973-11-27
Abstract
No abstract record available.
Inventors
- 👤 Leonard V Chabala
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 05:37
CPC Classifications
H; H01; H01H; H01H75/00; H01H75/02; H01H75/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US274135A
Cited
US2349632A
Cited
US2361221A
Cited
US2468498A
Cited
US2468851A
Cited
US2655575A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-03-11 | 1960-09-10 | 1961-03-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-03-11 | 1964-09-10 | 1965-03-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-03-11 | 1968-09-10 | 1969-03-12 | $7700.00 | Window Closed / Lapsed |