US3256468A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrode for electrical capacitors and method of making the same
Assignee: General Electric Co
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Filing: 1962-04-17
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Granted: 1966-06-14
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Expires: 1982-04-17
Abstract
No abstract record available.
Inventors
- 👤 Alfred L Jenny
- 👤 Levin W Foster
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 16:17
CPC Classifications
H; H01; H01G; H01G9/00; H01G9/004; H01G9/04; H01G9/042; H01G9/045; C; C23; C23C; C23C14/00; C23C14/04; C23C14/046; C23C14/22; C23C14/56; C23C14/562
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
68 words
AN ELECTRICAL CAPACITOR COMPRISING A PAIR OF ELECTRODES AND AN ELECTROLYTE IN CONTACT THEREWITH, AT LEAST ONE ELECTRODE BEING COMPOSED OF AN ALUMINUM BASE MEMBER HAVING AN ETCHED SURFACE AND A CONTINUOUS COATING OF TANTALUM THEREON, SAID TANTALUM COATING HAVING A CONTINUOUS ANODIC DIELECTRIC OXIDE FILM FORMED THEREON, THE SURFACE CONTOUR OF THE FILM-FORMED TANTALUM COATED ELECTRODE SUBSTANTIALLY CORRESPONDING TO THE ETCHED SURFACE OF THE ALUMINUM BASE MEMBER.
Claim 2
Dependent Claim
68 words
AN ELECTRICAL CAPACITOR COMPRISING A PAIR OF ELECTRODES AND AN ELECTROLYTE IN CONTACT THEREWITH, AT LEAST ONE ELECTRODE BEING COMPOSED OF AN ALUMINUM BASE MEMBER HAVING AN ETCHED SURFACE AND A CONTINUOUS COATING OF TANTALUM THEREON, SAID TANTALUM COATING HAVING A CONTINUOUS ANODIC DIELECTRIC OXIDE FILM FORMED THEREON, THE SURFACE CONTOUR OF THE FILM-FORMED TANTALUM COATED ELECTRODE SUBSTANTIALLY CORRESPONDING TO THE ETCHED SURFACE OF THE ALUMINUM BASE MEMBER.
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) | 1969-06-13 | 1969-12-13 | 1970-06-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-06-13 | 1973-12-13 | 1974-06-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-06-13 | 1977-12-13 | 1978-06-14 | $7700.00 | Window Closed / Lapsed |