Patent US3631302A successfully refreshed from Google Patents.
US3631302A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrolytic device employing semiconductor oxide electrolyte
Assignee: Individual
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Filing: 1968-10-14
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Granted: 1971-12-28
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Expires: 1988-10-14
Abstract
Abstract A solid electrolyte condenser is produced by competing electrolytic reactions that produce a dielectric oxide film on an anode and an outer layer of semiconductive oxide or oxides on said film by passing current through said anode, and a suitable cathode in an aqueous electrolyte containing a film-forming anion; and an cation capable of being oxidized to a semiconductive layer on the surface of the dielectric film.
Inventors
- 👤 Preston Robinson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:22
CPC Classifications
H; H01; H01G; H01G9/00; H01G9/15
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
51 words
The device of claim 1 wherein said anode is a member of the group consisting of aluminum and tantalum; said film-forming anion is a member of the group consisting of phosphate, borate, and sulfamate; and said semiconductive oxide-forming cation is a member of the group consisting of Mn, Ni, and Pb.
Claim 2
Independent Claim
88 words
A method of making an electrolytic device having a film-forming anode coated with a dielectric film and a superimposed semiconductive layer comprising the steps of anodizing said anode in an electrolyte containing both a film-forming anion and a semiconductive oxide-forming cation to produce said dielectric film, continuing anodization in said electrolyte to produce said semiconducting oxide layer in intimate contact with said dielectric film, continuing anodization in said electrolyte still further to produce additional dielectric film, and making connections to said anode and to said semiconducting oxide layer.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-12-27 | 1975-06-28 | 1975-12-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-12-27 | 1979-06-28 | 1979-12-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-12-27 | 1983-06-28 | 1983-12-28 | $7700.00 | Window Closed / Lapsed |