Patent US3337428A successfully refreshed from Google Patents.
US3337428A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of forming a capacitor
Assignee: Individual
•
Filing: 1963-11-19
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Granted: 1967-08-22
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Expires: 1983-11-19
Abstract
No abstract record available.
Inventors
- 👤 Allen J Wright
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 10:19
CPC Classifications
H; H01; H01G; H01G9/00; H01G9/15; H10; H10W; H10W74/00; H10W74/40; H10W74/43
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
69 words
A PROCESS FOR PRODUCING A CAPACITOR COMPRISING: (A) IMPREGNATING AN ANODIZED, POROUS, VALVE-METAL BODY WITH A SOLUTION OF A SEMICONDUCTING OXIDE PRECURSOR; (B) SUBJECTING THE IMPREGNATED BODY TO A REDUCTION IN TEMPERATURE AT LEAST SUFFICIENT TO CRYSTALLIZE SAID PRECURSOR; (C) PYROLYSING SAID PRECURSOR TO FORM THE SEMICONDUCTING OXIDE; (D) ELECTROLYTICALLY REFORMING THE OXIDE FILM OF THE VALVE-METAL BODY; AND (E) APPLYING AN ELECTRICALLY CONDUCTIVE CONNECTION TO THE SEMICONDUCTING OXIDE.
Claim 2
Dependent Claim
69 words
A PROCESS FOR PRODUCING A CAPACITOR COMPRISING: (A) IMPREGNATING AN ANODIZED, POROUS, VALVE-METAL BODY WITH A SOLUTION OF A SEMICONDUCTING OXIDE PRECURSOR; (B) SUBJECTING THE IMPREGNATED BODY TO A REDUCTION IN TEMPERATURE AT LEAST SUFFICIENT TO CRYSTALLIZE SAID PRECURSOR; (C) PYROLYSING SAID PRECURSOR TO FORM THE SEMICONDUCTING OXIDE; (D) ELECTROLYTICALLY REFORMING THE OXIDE FILM OF THE VALVE-METAL BODY; AND (E) APPLYING AN ELECTRICALLY CONDUCTIVE CONNECTION TO THE SEMICONDUCTING OXIDE.
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) | 1970-08-21 | 1971-02-20 | 1971-08-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-08-21 | 1975-02-20 | 1975-08-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-08-21 | 1979-02-20 | 1979-08-22 | $7700.00 | Window Closed / Lapsed |