US3214648A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Organic semiconductor solid capacitor
Assignee: Sprague Electric Co
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Filing: 1961-06-19
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Granted: 1965-10-26
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Expires: 1981-06-19
Abstract
No abstract record available.
Inventors
- 👤 Sidney D Ross
- 👤 Raymond C Petersen
- 👤 Finkelstein Manuel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:14
CPC Classifications
H; H01; H01G; H01G9/00; H01G9/004; H01G9/022; H01G9/025; H01G9/028
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
77 words
IN A CAPACITOR HAVING AN ELECTRODE OF FILM-FORMING METAL AND ANOTHER ELECTRODE HAVING A SOLID SPACER BETWEEN AND IN INTIMATE CONTACT WITH BOTH ELECTRODES, THE IMPROVEMENT WHEREBY SAID SPACER INCLUDES A DIELECTRIC FILM FORMED ON SAID FILM-FORMING ELECTRODE AND A SECOND FILM OF SEMICONDUCTIVE MATERIAL FORMED IN SITU ON SAID DIELECTRIC FILM, SAID MATERIAL COMPOSED OF AN ORGANIC CHARGE-TRANSFER TYPE COMPLEX COMPOUND HAVING A ROOM TEMPERATURE RESISTIVITY IN THE RANGE OF 0.01 OHM-CM. TO ABOUT 220 OHM-CM.
Claim 2
Dependent Claim
77 words
IN A CAPACITOR HAVING AN ELECTRODE OF FILM-FORMING METAL AND ANOTHER ELECTRODE HAVING A SOLID SPACER BETWEEN AND IN INTIMATE CONTACT WITH BOTH ELECTRODES, THE IMPROVEMENT WHEREBY SAID SPACER INCLUDES A DIELECTRIC FILM FORMED ON SAID FILM-FORMING ELECTRODE AND A SECOND FILM OF SEMICONDUCTIVE MATERIAL FORMED IN SITU ON SAID DIELECTRIC FILM, SAID MATERIAL COMPOSED OF AN ORGANIC CHARGE-TRANSFER TYPE COMPLEX COMPOUND HAVING A ROOM TEMPERATURE RESISTIVITY IN THE RANGE OF 0.01 OHM-CM. TO ABOUT 220 OHM-CM.
References Cited (Backward Citations)
US3093883A
Cited
US3029370A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-10-25 | 1969-04-26 | 1969-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-25 | 1973-04-26 | 1973-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-25 | 1977-04-26 | 1977-10-26 | $7700.00 | Window Closed / Lapsed |