US3138773A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical coils with permeable resin bonding permitting penetration of dielectric liquid therethrough
Assignee: General Electric Co
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Filing: 1959-12-01
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Granted: 1964-06-23
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Expires: 1979-12-01
Abstract
No abstract record available.
Inventors
- 👤 Frank S Nichols
- 👤 Eugene K Steele
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:14
CPC Classifications
H; H01; H01F; H01F27/00; H01F27/28; H01F27/32; H01F27/327
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
76 words
AN ELECTRICAL APPARATUS COMPRISING, IN COMBINATION, A CONTAINER HAVING DIELECTRIC FLUID THEREIN, A COIL IN SAID CONTAINER FORMED BY A WOUND CONDUCTOR HAVING AN INSULATING COATING THEREON, SAID COIL HAVING INTERSTICES THEREIN AND HAVING DEPOSITED ONLY ON THE OUTER SURFACES THEREOF A FILM COMPOSED OF A FUSED PARTICULATE RESIN MATERIAL, SAID DEPOSITED PARTICULATE FILM BEING POROUS AND PERMEABLE TO SAID DIELECTRIC FLUID BY BOTH RADIAL AND AXIAL PENETRATION THROUGH THE WOUND COIL, WHEREBY THE DEPOSITED FILM
Claim 2
Dependent Claim
76 words
AN ELECTRICAL APPARATUS COMPRISING, IN COMBINATION, A CONTAINER HAVING DIELECTRIC FLUID THEREIN, A COIL IN SAID CONTAINER FORMED BY A WOUND CONDUCTOR HAVING AN INSULATING COATING THEREON, SAID COIL HAVING INTERSTICES THEREIN AND HAVING DEPOSITED ONLY ON THE OUTER SURFACES THEREOF A FILM COMPOSED OF A FUSED PARTICULATE RESIN MATERIAL, SAID DEPOSITED PARTICULATE FILM BEING POROUS AND PERMEABLE TO SAID DIELECTRIC FLUID BY BOTH RADIAL AND AXIAL PENETRATION THROUGH THE WOUND COIL, WHEREBY THE DEPOSITED FILM
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-06-23 | 1967-12-23 | 1968-06-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-23 | 1971-12-23 | 1972-06-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-23 | 1975-12-23 | 1976-06-23 | $7700.00 | Window Closed / Lapsed |