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US3048648A
Expired / Lapsed
US
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Electrical apparatus and gaseous dielectric material therefor comprising perfluoroalkylnitrile
Assignee: General Electric Co
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Filing: 1959-08-25
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Granted: 1962-08-07
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Expires: 1979-08-25
Abstract
No abstract record available.
Inventors
- 👤 Ralph E Plump
- 👤 John C Devins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 16:28
CPC Classifications
H; H01; H01H; H01H33/00; H01H33/02; H01H33/04; H01H33/22; H01B; H01B3/00; H01B3/02; H01B3/16; H01F; H01F27/00; H01F27/08; H01F27/20; H01H33/24
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
60 words
AN ELECTRICAL APPARATUS COMPRISING, IN COMBINATION, A CLOSED CONTAINER AND AN ELECTRICAL DEVICE WITHIN SAID CONTAINER INCLUDING SPACED CONDUCTING PARTS WHICH DURING OPERATION ARE AT UNEQUAL POTENTIAL, AND A GASEOUS ELECTRICAL INSULATING MEDIUM IN SAID CONTAINER BETWEEN SAID PARTS CONTAINING AS AN ESSENTIAL INGREDIENT A PERFLUOROALKYLNITROLE HAVING THE FORMULA CNF2M+CN, IN WHICH N IS AN INTEGER FROM 1 TO 3.
Claim 2
Dependent Claim
60 words
AN ELECTRICAL APPARATUS COMPRISING, IN COMBINATION, A CLOSED CONTAINER AND AN ELECTRICAL DEVICE WITHIN SAID CONTAINER INCLUDING SPACED CONDUCTING PARTS WHICH DURING OPERATION ARE AT UNEQUAL POTENTIAL, AND A GASEOUS ELECTRICAL INSULATING MEDIUM IN SAID CONTAINER BETWEEN SAID PARTS CONTAINING AS AN ESSENTIAL INGREDIENT A PERFLUOROALKYLNITROLE HAVING THE FORMULA CNF2M+CN, IN WHICH N IS AN INTEGER FROM 1 TO 3.
References Cited (Backward Citations)
US2671799A
Cited
US2845472A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-08-06 | 1966-02-05 | 1966-08-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-08-06 | 1970-02-05 | 1970-08-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-08-06 | 1974-02-05 | 1974-08-07 | $7700.00 | Window Closed / Lapsed |