US3129276A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas filled terminal bushing with protective check valve
Assignee: Westinghouse Electric Corp
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Filing: 1959-05-29
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Granted: 1964-04-14
•
Expires: 1979-05-29
Abstract
No abstract record available.
Inventors
- 👤 Gilbert J Easley
- 👤 James H Frakes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 23:18
CPC Classifications
H; H01; H01B; H01B17/00; H01B17/36
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
67 words
AN ENTRANCE-TYPE TERMINAL BUSHING AT LEAST PARTIALLY FILLED WITH GAS AND INCLUDING A GROUNDED MOUNTING FLANGE, A TERMINAL STUD FOR THE TERMINAL BUSHING HAVING A DIELECTRIC BODY DISPOSED THEREABOUT, A WEATHER-PROOF CASING OF A CERAMIC MATERIAL, A GAS SPACE BETWEEN SAID WEATHERPROOF CASING AND SAID DIELECTRIC BODY, A BARRIER PLATE CONSTITUTING A PART OF THE TERMINAL BUSHING AND ASSOCIATED WITH SAID GROUNDED MOUNTING FLANGE, SAID BARRIER PLATE
References Cited (Backward Citations)
DE601905C
Cited
US2116419A
Cited
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Cited
US2447883A
Cited
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Cited
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Cited
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Cited
US2647939A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-04-14 | 1967-10-14 | 1968-04-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-04-14 | 1971-10-14 | 1972-04-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-04-14 | 1975-10-14 | 1976-04-14 | $7700.00 | Window Closed / Lapsed |