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US2849581A
Expired / Lapsed
US
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Front-operated circuit interrupters
Assignee: Westinghouse Electric Corp
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Filing: 1955-01-28
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Granted: 1958-08-26
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Expires: 1975-01-28
Abstract
No abstract record available.
Inventors
- 👤 Bingenheimer Melvin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 11:28
CPC Classifications
H; H01; H01H; H01H71/00; H01H71/10; H01H71/50; H01H71/501; H01H71/56; H01H2071/565; Y; Y10; Y10S; Y10S200/00; Y10S200/42
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1248603A
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US2047739A
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US2135371A
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US2145811A
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US2231072A
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US2318298A
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US2492009A
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US2408165A
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US2550125A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-08-25 | 1962-02-24 | 1962-08-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-08-25 | 1966-02-24 | 1966-08-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-08-25 | 1970-02-24 | 1970-08-26 | $7700.00 | Window Closed / Lapsed |