US3340446A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical capacitor
Assignee: General Electric Co
•
Filing: 1966-05-24
•
Granted: 1967-09-05
•
Expires: 1986-05-24
Abstract
No abstract record available.
Inventors
- 👤 Eugene B Cox
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 09:05
CPC Classifications
H; H01; H01G; H01G4/00; H01G4/002; H01G4/018; H01G4/20; H01G4/22; H01G4/06; H01G4/14; H01G4/18; H01G4/206; H01G4/221
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
81 words
AN ELECTRICAL CAPACITOR COMPRISING, IN COMBINATION, METAL ELECTRODE FOILS SEPARATED BY DIELECTRIC SPACER MATERIAL, SAID DIELECTRIC SPACER MATERIAL COMPRISING SYNTHETIC RESIN FILM MATERIAL HAVING SMOOTH SURFACES, A LAYER OF FINELY-DIVIDED PARTICLES OF ALUMINUM OXIDE DISPOSED ESSENTIALLY ON ONLY SAID SURFACES OF SAID SYNTHETIC RESIN FILM MATERIAL AND CONTACTING THE SURFACE OF THE ADJACENT METAL ELECTRODE, SAID PARTICLES BEING LESS THAN ABOUT .5 MICRON IN DIAMETER, AND A DIELECTRIC LIQUID MATERIAL IMPREGNATING SAID LAYER OF FINELY-DIVIDED PARTICLES AND FILLING THE VOIDS THEREIN.
Claim 2
Dependent Claim
81 words
AN ELECTRICAL CAPACITOR COMPRISING, IN COMBINATION, METAL ELECTRODE FOILS SEPARATED BY DIELECTRIC SPACER MATERIAL, SAID DIELECTRIC SPACER MATERIAL COMPRISING SYNTHETIC RESIN FILM MATERIAL HAVING SMOOTH SURFACES, A LAYER OF FINELY-DIVIDED PARTICLES OF ALUMINUM OXIDE DISPOSED ESSENTIALLY ON ONLY SAID SURFACES OF SAID SYNTHETIC RESIN FILM MATERIAL AND CONTACTING THE SURFACE OF THE ADJACENT METAL ELECTRODE, SAID PARTICLES BEING LESS THAN ABOUT .5 MICRON IN DIAMETER, AND A DIELECTRIC LIQUID MATERIAL IMPREGNATING SAID LAYER OF FINELY-DIVIDED PARTICLES AND FILLING THE VOIDS THEREIN.
References Cited (Backward Citations)
CA623731A
Cited
US2446928A
Cited
US2424853A
Cited
US3090705A
Cited
US2995688A
Cited
US3048750A
Cited
GB970037A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-09-04 | 1971-03-06 | 1971-09-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-04 | 1975-03-06 | 1975-09-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-04 | 1979-03-06 | 1979-09-05 | $7700.00 | Window Closed / Lapsed |