Patent US3289269A successfully refreshed from Google Patents.
US3289269A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of producing an electrical capacitor
Assignee: —
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Filing: —
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Granted: 1966-12-06
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Expires: 1983-12-06
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:42
CPC Classifications
H; H01; H01G; H01G4/00; H01G4/30; H05; H05K; H05K1/00; H05K1/16; H05K1/162; H05K2201/00; H05K2201/03; H05K2201/0332; H05K2201/0335; H05K2201/0355; Y; Y10; Y10T; Y10T29/00; Y10T29/43; Y10T29/435
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
153 words
A METHOD OF PRODUCING AN ELECTRICAL CAPACITOR, WITH REGENERATIVE CHARACTERISTICS, HAVING A DIELECTRIC FORMED BY A BAND WITH A THICKNESS OF LESS THAN 6 MICRONS, PROVIDED WITH A THIN REGENERATIVE COATING, COMPRISING, PLACING UPON A SUITABLE AUXILIARY SUPPORT A FIRST VARNISH LAYER MADE OF A MATERIAL WITH RELATIVELY GOOD REGENERATIVE PROPERTIES AND RELATIVELY POOR DIELECTRIC PROPERTIES, VAPORIZING UPON SAID FIRST VARNISH LAYER A METAL COATING WHILE LEAVING A MARGINAL STRIP THEREOF FREE OF METAL, PLACING UPON SAID METAL COATING A SECOND VARNISH LAYER WHICH IS THICKER, PREFERABLY CONSIDERABLY THICKER, THAN THE FIRST LAYER AND MADE OF A MATERIAL HAVING RELATIVELY GOOD DIELECTRIC PROPERTIES AND RELATIVELY POOR REGENERATIVE PROPERTIES, THUS FORMING UPON SAID AUXILIARY SUPPORT A THREE-LAYER FOIL HAVING TWO VARNISH LAYERS AND ONE METAL COATING, REMOVING SAID THREE-LAYER FOIL FROM THE AUXILIARY SUPPORT, AND FORMING A CAPACITOR FROM AT LEAST TWO SUCH THREE-LAYER FOILS WHICH ARE ASSEMBLED WITH THE METAL COATINGS MUTUALLY DISPLACED.
Claim 2
Independent Claim
153 words
A METHOD OF PRODUCING AN ELECTRICAL CAPACITOR, WITH REGENERATIVE CHARACTERISTICS, HAVING A DIELECTRIC FORMED BY A BAND WITH A THICKNESS OF LESS THAN 6 MICRONS, PROVIDED WITH A THIN REGENERATIVE COATING, COMPRISING, PLACING UPON A SUITABLE AUXILIARY SUPPORT A FIRST VARNISH LAYER MADE OF A MATERIAL WITH RELATIVELY GOOD REGENERATIVE PROPERTIES AND RELATIVELY POOR DIELECTRIC PROPERTIES, VAPORIZING UPON SAID FIRST VARNISH LAYER A METAL COATING WHILE LEAVING A MARGINAL STRIP THEREOF FREE OF METAL, PLACING UPON SAID METAL COATING A SECOND VARNISH LAYER WHICH IS THICKER, PREFERABLY CONSIDERABLY THICKER, THAN THE FIRST LAYER AND MADE OF A MATERIAL HAVING RELATIVELY GOOD DIELECTRIC PROPERTIES AND RELATIVELY POOR REGENERATIVE PROPERTIES, THUS FORMING UPON SAID AUXILIARY SUPPORT A THREE-LAYER FOIL HAVING TWO VARNISH LAYERS AND ONE METAL COATING, REMOVING SAID THREE-LAYER FOIL FROM THE AUXILIARY SUPPORT, AND FORMING A CAPACITOR FROM AT LEAST TWO SUCH THREE-LAYER FOILS WHICH ARE ASSEMBLED WITH THE METAL COATINGS MUTUALLY DISPLACED.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-12-05 | 1970-06-06 | 1970-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-05 | 1974-06-06 | 1974-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-05 | 1978-06-06 | 1978-12-06 | $7700.00 | Window Closed / Lapsed |