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US3433913A
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US
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Gas-blast circuit interrupter
Assignee: Westinghouse Electric Corp
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Filing: 1965-07-28
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Granted: 1969-03-18
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Expires: 1985-07-28
Abstract
No abstract record available.
Inventors
- 👤 Winthrop M Leeds
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 14:33
CPC Classifications
H; H01; H01H; H01H33/00; H01H33/02; H01H33/04; H01H33/16; H01H33/167; H01H33/12; H01H33/70; H01H33/80; H01H33/82
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2665351A
Cited
US2977446A
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US3043940A
Cited
US3014111A
Cited
US3093717A
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US3291947A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-03-17 | 1972-09-16 | 1973-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-17 | 1976-09-16 | 1977-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-17 | 1980-09-16 | 1981-03-18 | $7700.00 | Window Closed / Lapsed |