US3258569A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Truck-mounted compressed-gas circuit interrupter with tank-enclosed interrupting units and blast tubes in spaced vertical planes
Assignee: Westinghouse Electric Corp
•
Filing: 1961-02-15
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Granted: 1966-06-28
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Expires: 1981-02-15
Abstract
No abstract record available.
Inventors
- 👤 Russell E Frink
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 10:30
CPC Classifications
H; H01; H01H; H01H33/00; H01H33/70; H01H33/80; H01H33/82; H01H33/02; H01H33/53; H01H33/57; H02; H02B; H02B11/00; H02B11/12; H02B11/167
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2597596A
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US2447627A
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US2783337A
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US2824937A
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US2783338A
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US3009042A
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US3033962A
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US2979590A
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US3009983A
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US3099733A
Cited
US3095490A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-06-27 | 1969-12-27 | 1970-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-06-27 | 1973-12-27 | 1974-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-06-27 | 1977-12-27 | 1978-06-28 | $7700.00 | Window Closed / Lapsed |