US3141118A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrolytic capacitor unit
Assignee: Individual
•
Filing: 1957-03-29
•
Granted: 1964-07-14
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Expires: 1977-03-29
Abstract
No abstract record available.
Inventors
- 👤 Jean W Runtz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 02:05
CPC Classifications
H; H01; H01G; H01G9/00; H01G9/145
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
104 words
A CAPACITOR UNIT COMPRISING A TUBULAR METALLIC CATHODE HAVING AN OPEN END AND A CLOSED END, A TANTALUM WIRE INCLUDING A SMOOTH PORTION AND A COIL-SHAPED ROUGH PORTION COATED WITH TANTALUM OXIDE AND DEFINING AN ANODE EXTENDING WITHIN SAID CATHODE, SAID SMOOTH WIRE PORTION PROJECTING THROUGH SAID OPEN END OF SAID CATHODE, A CLOSURE MEMBER SEATED IN SAID OPEN END OF SAID CATHODE SPACEDAPART FROM SAID ROUGH PORTION AND TIGHTLY EMBRACING SAID SMOOTH TANTALUM WIRE PROJECTING THROUGH SAID OPEN END, THE LIP OF THE OPEN END OF SAID CATHODE BEING CONSTRICTED TO COMPRESS SAID CLOSURE MEMBER, AND A LIQUID ELECTROLYTE WITHIN SAID TUBULAR CATHODE.
Claim 2
Dependent Claim
104 words
A CAPACITOR UNIT COMPRISING A TUBULAR METALLIC CATHODE HAVING AN OPEN END AND A CLOSED END, A TANTALUM WIRE INCLUDING A SMOOTH PORTION AND A COIL-SHAPED ROUGH PORTION COATED WITH TANTALUM OXIDE AND DEFINING AN ANODE EXTENDING WITHIN SAID CATHODE, SAID SMOOTH WIRE PORTION PROJECTING THROUGH SAID OPEN END OF SAID CATHODE, A CLOSURE MEMBER SEATED IN SAID OPEN END OF SAID CATHODE SPACEDAPART FROM SAID ROUGH PORTION AND TIGHTLY EMBRACING SAID SMOOTH TANTALUM WIRE PROJECTING THROUGH SAID OPEN END, THE LIP OF THE OPEN END OF SAID CATHODE BEING CONSTRICTED TO COMPRESS SAID CLOSURE MEMBER, AND A LIQUID ELECTROLYTE WITHIN SAID TUBULAR CATHODE.
References Cited (Backward Citations)
FR424186A
Cited
US2042044A
Cited
US2393966A
Cited
US2862155A
Cited
US2846624A
Cited
US2900579A
Cited
US2907933A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-07-14 | 1968-01-13 | 1968-07-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-07-14 | 1972-01-13 | 1972-07-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-07-14 | 1976-01-13 | 1976-07-14 | $7700.00 | Window Closed / Lapsed |