Patent US3255386A successfully refreshed from Google Patents.
US3255386A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Solid feed-through electrolytic capacitor
Assignee: Sprague Electric Co
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Filing: 1961-02-15
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Granted: 1966-06-07
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Expires: 1981-02-15
Abstract
No abstract record available.
Inventors
- 👤 Richard J Millard
- 👤 Whitman Alfred
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 08:48
CPC Classifications
H; H01; H01G; H01G9/00; H01G9/15; H01G9/004; H01G9/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
109 words
A FEED-THROUGH CAPACITOR COMPRISING AN ELONGATED POROUS ELECTRODE SECTION OF SINTERED ANODIZABLE METAL PARTICLES AND TERMINALS PROJECTING IN OPPOSITE DIRECTIONS THEREFROM, A DIELECTRIC FILM COVERING THE SURFACE OF THE PARTICLES, A SOLID ELECTROLYTE COVERING THE DIELECTRIC FILM AND A CONDUCTIVE LAYER COVERING THE ELETROLYTE AND BEING INSULATED FROM BOTH OF SAID TERMINALS, AN ELONGATED HOLLOW CASING, SAID SECTION BEING IN SAID CASING WITH SAID TERMINALS EXTENDING FROM THE OPPOSITE ENDS THEREOF AND INSULATED THEREFROM, A SOLDER CONTACT ALONG THE INNER WALL OF SAID CASING AND CONTACTING THE EXPOSED SURFACE OF SAID CONDUCTIVE LAYER SO CONSTRUCTED AND ARRANGED AS TO SUBSTANTIALLY ENTIRELY ELECTRICALLY CONNECT THE CONDUCTIVE LAYER TO THE CASING.
Claim 2
Dependent Claim
109 words
A FEED-THROUGH CAPACITOR COMPRISING AN ELONGATED POROUS ELECTRODE SECTION OF SINTERED ANODIZABLE METAL PARTICLES AND TERMINALS PROJECTING IN OPPOSITE DIRECTIONS THEREFROM, A DIELECTRIC FILM COVERING THE SURFACE OF THE PARTICLES, A SOLID ELECTROLYTE COVERING THE DIELECTRIC FILM AND A CONDUCTIVE LAYER COVERING THE ELETROLYTE AND BEING INSULATED FROM BOTH OF SAID TERMINALS, AN ELONGATED HOLLOW CASING, SAID SECTION BEING IN SAID CASING WITH SAID TERMINALS EXTENDING FROM THE OPPOSITE ENDS THEREOF AND INSULATED THEREFROM, A SOLDER CONTACT ALONG THE INNER WALL OF SAID CASING AND CONTACTING THE EXPOSED SURFACE OF SAID CONDUCTIVE LAYER SO CONSTRUCTED AND ARRANGED AS TO SUBSTANTIALLY ENTIRELY ELECTRICALLY CONNECT THE CONDUCTIVE LAYER TO THE CASING.
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) | 1969-06-06 | 1969-12-06 | 1970-06-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-06-06 | 1973-12-06 | 1974-06-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-06-06 | 1977-12-06 | 1978-06-07 | $7700.00 | Window Closed / Lapsed |