Patent US3202892A successfully refreshed from Google Patents.
US3202892A
Expired / Lapsed
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Self-healing capacitor
Assignee: Sprague Electric Co
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Filing: 1959-02-20
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Granted: 1965-08-24
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Expires: 1979-02-20
Abstract
No abstract record available.
Inventors
- 👤 Paul H Netherwood
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 12:58
CPC Classifications
H; H01; H01G; H01G4/00; H01G4/002; H01G4/005; H01G4/015
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
53 words
A CONVOLUTELY WOUND SELF-HEALING CAPACITOR HAVING A NON-SELF-SUPPORTING VAPOR-DEPOSITED STRATUM OF METAL ON A SMOOTH RESIN FILM DEPOSITED ON A POROUS MATRIX, SAID RESIN FILM COMPRISING A CELLULOSE ESTER CONTAINING A HYDROXY RADICAL CROSS-LINKED WITH A DI-SIOCYANATE, AND A DIELECTRIC MATERIAL IMPREGNATING SAID POROUS MATRIX, SAID RESIN BEING INERT TO SAID DIELECTRIC MATERIAL,
Claim 2
Dependent Claim
53 words
A CONVOLUTELY WOUND SELF-HEALING CAPACITOR HAVING A NON-SELF-SUPPORTING VAPOR-DEPOSITED STRATUM OF METAL ON A SMOOTH RESIN FILM DEPOSITED ON A POROUS MATRIX, SAID RESIN FILM COMPRISING A CELLULOSE ESTER CONTAINING A HYDROXY RADICAL CROSS-LINKED WITH A DI-SIOCYANATE, AND A DIELECTRIC MATERIAL IMPREGNATING SAID POROUS MATRIX, SAID RESIN BEING INERT TO SAID DIELECTRIC MATERIAL,
References Cited (Backward Citations)
US2430479A
Cited
US2415839A
Cited
US2468713A
Cited
US2741730A
Cited
US2935668A
Cited
US2749490A
Cited
US2806190A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-08-23 | 1969-02-22 | 1969-08-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-23 | 1973-02-22 | 1973-08-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-23 | 1977-02-22 | 1977-08-24 | $7700.00 | Window Closed / Lapsed |