US3079536A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Film-forming metal capacitors
Assignee: AT&T Inc
•
Filing: 1959-09-21
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Granted: 1963-02-26
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Expires: 1979-09-21
Abstract
No abstract record available.
Inventors
- 👤 David A Mclean
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:56
CPC Classifications
H; H01; H01G; H01G9/00; H01G9/15; H01G9/004; H01G9/04; Y; Y10; Y10S; Y10S205/00; Y10S205/918
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
92 words
THE METHOD OF FABRICATING A CAPACITOR WHICH COMPRISES THE STEPS OF PRODUCING A LAYER OF A FILM-FORMING METAL ON A SUBSTRATE BY CONDENSATION, ANODIZING THE SAID FILM-FORMING METAL TO FORM A DIELECTRIC OXIDE FILM THEREOVER, IMMERSING THE ANODIZED ELECTRODE IN A NON-AQUEOUS ELECTROLYTE COMPRISING IONS OF AT LEAST ONE HALOGEN, BIASING SAID ANODIZED ELECTRODE ANODICALLY TO CAUSE AN ELECTRIC CURRENT FLOW BETWEEN SAID FIRST ELECTRODE AND SAID ELECTROLYTE, REANODIZING SAID FIRST ELECTRODE, AND DISPOSING A SECOND ELECTRODE SUCH THAT SAID DIELECTRIC OXIDE FILM IS INTERPOSED BETWEEN SAID FIRST AND SAID SECOND ELECTRODES.
Claim 2
Independent Claim
92 words
THE METHOD OF FABRICATING A CAPACITOR WHICH COMPRISES THE STEPS OF PRODUCING A LAYER OF A FILM-FORMING METAL ON A SUBSTRATE BY CONDENSATION, ANODIZING THE SAID FILM-FORMING METAL TO FORM A DIELECTRIC OXIDE FILM THEREOVER, IMMERSING THE ANODIZED ELECTRODE IN A NON-AQUEOUS ELECTROLYTE COMPRISING IONS OF AT LEAST ONE HALOGEN, BIASING SAID ANODIZED ELECTRODE ANODICALLY TO CAUSE AN ELECTRIC CURRENT FLOW BETWEEN SAID FIRST ELECTRODE AND SAID ELECTROLYTE, REANODIZING SAID FIRST ELECTRODE, AND DISPOSING A SECOND ELECTRODE SUCH THAT SAID DIELECTRIC OXIDE FILM IS INTERPOSED BETWEEN SAID FIRST AND SAID SECOND ELECTRODES.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-02-25 | 1966-08-27 | 1967-02-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-02-25 | 1970-08-27 | 1971-02-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-02-25 | 1974-08-27 | 1975-02-26 | $7700.00 | Window Closed / Lapsed |