Patent US3248612A successfully refreshed from Google Patents.
US3248612A
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US
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Capacitor electrode and method
Assignee: Sprague Electric Co
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Filing: 1962-07-23
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Granted: 1966-04-26
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Expires: 1982-07-23
Abstract
No abstract record available.
Inventors
- 👤 Donald G Rogers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 16:01
CPC Classifications
H; H01; H01G; H01G9/00; H01G9/0029; H01G9/0032; B; B22; B22F; B22F1/00; B22F1/18; C; C23; C23C; C23C16/00; C23C16/44; C23C16/442; H01G9/004; H01G9/04; H01G9/048; H01G9/052; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2982; Y10T428/2991; Y10T428/2993
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
57 words
AN ELECTRODE FOR ELECTRICAL CAPACITORS COMPRISING A POROUS PELLET OF SINTERED TOGETHER TANTALUM-COATED CERAMIC PARTICLES, SAID PARTICLES BEING SUBSTANTIALLY SPHERICAL AND SMALLER THAN ABOUT 5 MILS, SAID TANTALUM COATING BEING A CONTINUOUS FILM OF A SURFACE CATALYZED VAPOR PHASE REACTION, EACH RESULTING PARTICLE CONTAINING AT LEAST 40% BY WEIGHT OF CERAMIC, SAID RESULTING PARTICLES BEING SINTERED TOGETHER.
Claim 2
Dependent Claim
57 words
AN ELECTRODE FOR ELECTRICAL CAPACITORS COMPRISING A POROUS PELLET OF SINTERED TOGETHER TANTALUM-COATED CERAMIC PARTICLES, SAID PARTICLES BEING SUBSTANTIALLY SPHERICAL AND SMALLER THAN ABOUT 5 MILS, SAID TANTALUM COATING BEING A CONTINUOUS FILM OF A SURFACE CATALYZED VAPOR PHASE REACTION, EACH RESULTING PARTICLE CONTAINING AT LEAST 40% BY WEIGHT OF CERAMIC, SAID RESULTING PARTICLES BEING SINTERED TOGETHER.
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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) | 1969-04-25 | 1969-10-25 | 1970-04-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-25 | 1973-10-25 | 1974-04-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-25 | 1977-10-25 | 1978-04-26 | $7700.00 | Window Closed / Lapsed |