US3248612A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Capacitor electrode and method
Assignee: Sprague Electric Co
•
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 13:59
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.
References Cited (Backward Citations)
US553296A
Cited
GB444892A
Cited
US2299228A
Cited
US2406345A
Cited
US2578667A
Cited
US2616165A
Cited
US2749255A
Cited
US2885310A
Cited
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 |