Patent US5333494A successfully refreshed from Google Patents.
Patent US3262867A successfully refreshed from Google Patents.
US3262867A
Expired / Lapsed
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Method for making film capacitors
Assignee: Lockheed Martin Corp
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Filing: 1962-11-28
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Granted: 1966-07-26
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Expires: 1982-11-28
Abstract
No abstract record available.
Inventors
- 👤 Jefferson N Callahan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 05:28
CPC Classifications
C; C25; C25D; C25D11/00; C25D11/02; C25D11/26
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
113 words
A METHOD OF MAKING CAPACITORS WHICH COMPRISES THE STEPS OF IMMERSING AN ARTICLE HAVING A THIN FILM OF TITANIUM ON AT LEAST ON SURFACE OF SAID ARTICLE IN AN ORGANIC ANODIZING BATH, SAID BATH COMPRISING, BY VOLUME, 5% TO 25% ETHYL ACID PHOSPHATE, 2% TO 15% ORTHOPHOPHORIC ACID, 5% GLYCEROL AND 20 TO 80% WATER, ANODIZING SAID SURFACE OF SAID ARTICLE IN SAID BATH BY APPLYING A DIRECT CURRENT VOLTAGE BETWEEN SAID SURFACE AND AN ASSOCIATED CONDUCTOR SERVING AS A CATHODE OF SAID ANODIZING STEP TO FORM A FIRST CONDUCTIVE ELECTRODE WITH A DIELECTRIC LAYER, AND FORMING A SECOND CONDUCTIVE LAYER ON THE EXPOSED SURFACE OF SAID DIELETRIC LAYER TO COMPLETE THE CAPACITOR.
Claim 2
Independent Claim
113 words
A METHOD OF MAKING CAPACITORS WHICH COMPRISES THE STEPS OF IMMERSING AN ARTICLE HAVING A THIN FILM OF TITANIUM ON AT LEAST ON SURFACE OF SAID ARTICLE IN AN ORGANIC ANODIZING BATH, SAID BATH COMPRISING, BY VOLUME, 5% TO 25% ETHYL ACID PHOSPHATE, 2% TO 15% ORTHOPHOPHORIC ACID, 5% GLYCEROL AND 20 TO 80% WATER, ANODIZING SAID SURFACE OF SAID ARTICLE IN SAID BATH BY APPLYING A DIRECT CURRENT VOLTAGE BETWEEN SAID SURFACE AND AN ASSOCIATED CONDUCTOR SERVING AS A CATHODE OF SAID ANODIZING STEP TO FORM A FIRST CONDUCTIVE ELECTRODE WITH A DIELECTRIC LAYER, AND FORMING A SECOND CONDUCTIVE LAYER ON THE EXPOSED SURFACE OF SAID DIELETRIC LAYER TO COMPLETE THE CAPACITOR.
References Cited (Backward Citations)
US2647079A
Cited
US2695380A
Cited
US2874102A
Cited
US2930951A
Cited
US3079536A
Cited
US3085052A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-07-25 | 1970-01-24 | 1970-07-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-25 | 1974-01-24 | 1974-07-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-25 | 1978-01-24 | 1978-07-26 | $7700.00 | Window Closed / Lapsed |