US3262867A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for making film capacitors
Assignee: Lockheed Martin Corp
•
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 01:11
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)
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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) | 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 |