US4768130A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Capacitor of the polymer film type with stability at high temperatures
Assignee: Compagnie Europeenne de Composants Electroniques LCC CICE
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Filing: 1987-10-09
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Granted: 1988-08-30
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Expires: 2007-10-09
Abstract
Abstract The invention pertains to a capacitor of a thermostable polymer film type. The polymer used is polyphenylquinoxaline or polyhydantoin. The polymer film may be obtained by casting with organic solutions. The capacitor can also be obtained with supporting films covered with metallizations coated with this thermostable polymer.
Inventors
- 👤 Gilles Bernard
- 👤 Jean-Marc Bureau
- 👤 Jean-Claude Dubois
- 👤 Jean-Luc Zattara
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 10:21
CPC Classifications
H; H01; H01G; H01G4/00; H01G4/002; H01G4/018; H01G4/06; H01G4/14; H01G4/18
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
17 words
A capacitor of the polymer film type, wherein the said polymer is a polyphenylquinolaxine or a polyhydantoin.
Claim 2
Dependent Claim
17 words
A capacitor of the polymer film type, wherein the said polymer is a polyphenylquinolaxine or a polyhydantoin.
Claim 3
Dependent Claim
49 words
A capacitor according to the claim 1 comprising several elementary capacitors, each elementary capacitor being formed of an element of the said polymer film included between a first armature and a second armature, with electrodes connecting the first armatures to one other and the second armatures to one another.
Claim 4
Dependent Claim
29 words
A capacitor according to the claim 2 wherein the polymer film used is bare and wherein each element of the said film is clamped between first and second armatures.
Claim 5
Dependent Claim
28 words
A capacitor according to the claim 2 wherein the polymer film is metallized on one of its sides, the said metallization acting as the first and second armatures.
Claim 6
Dependent Claim
21 words
A capacitor according to the claim 2 wherein the said polymer film comprises deposits made on the first and second armatures.
Claim 7
Dependent Claim
20 words
A capacitor according to the claim 5 wherein each main side of the said armatures supports a deposit of polymer.
Claim 8
Dependent Claim
28 words
A capacitor according to the claim 2 wherein the armatures comprise metallizations deposited on a supporting film, the metallizations being themselves coated with layer of the said polymer.
Claim 9
Dependent Claim
21 words
A capacitor according to the claim 7 wherein the supporting film is also of the polyphenylquinoxaline, polyhydantoin, polyimide or polytetrafluoroethylene type.
Claim 10
Dependent Claim
18 words
A capacitor according to the claim 7 wherein the supporting film is made of polycarbonate or polyethylene terephtalate.
References Cited (Backward Citations)
US3278816A
Cited
US2930714A
Cited
US3590347A
Cited
US3665269A
Cited
US3622848A
Cited
US3909481A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-08-30 | 1992-02-29 | 1992-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-08-30 | 1996-02-29 | 1996-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-08-30 | 2000-02-29 | 2000-08-30 | $7700.00 | Window Closed / Lapsed |