US2687462A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Circuit interrupter
Assignee: Westinghouse Electric Corp
•
Filing: 1950-02-16
•
Granted: 1954-08-24
•
Expires: 1970-02-16
Abstract
No abstract record available.
Inventors
- 👤 Albert R Cellerini
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:08
CPC Classifications
H; H01; H01H; H01H9/00; H01H9/30; H01H9/44
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB219723A
Cited
US1758752A
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US2047302A
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US2268336A
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US2133158A
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US2236580A
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US2255886A
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US2240623A
Cited
US2419125A
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US2363606A
Cited
US2352984A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-08-23 | 1958-02-22 | 1958-08-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-08-23 | 1962-02-22 | 1962-08-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-08-23 | 1966-02-22 | 1966-08-24 | $7700.00 | Window Closed / Lapsed |