US3761368A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Arrangement for forming electrode strips for electrolytic devices
Assignee: Ion Capacitor Corp
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Filing: 1971-10-06
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Granted: 1973-09-25
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Expires: 1991-10-06
Abstract
Abstract AN ELECTRODE STRIP OS THE SO-CALLED FABRICATED PLATE TYPE, FOR USE IN THE MANUFACTURE OF ELECTROLYTIC CAPACITORS AND OTHER ELECTROLYTIC DEVICES IS COMPACTED TO A THICKNESS SUBSTANTIALLY BEYOND THE POINT OF DECREASING SURFACE AREA AND IS THEN SUBJECTED TO AN ETCHING OPERATION WHEREBY THE COMPACTED METAL PARTICLES ARE ETCHED AWAY BY AN AMOUNT SUFFICIENT TO SUBSTANTIALLY INCREASE THE CAPACTANCE PER UNIT VOLUME OF THE STRIP. THE ETCHING OPERATION IS TERMINATED WHEN THE ELECTRICAL CONDUCTIVITY OF THE STRIP REACHES A PREDETERMINED VALUE AND BEFORE THE CAPACITANCE PER UNIT AREA OF THE STRIP BEGINS TO DECREASE.
Inventors
- 👤 J Ford
- 👤 A Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:56
CPC Classifications
H; H01; H01G; H01G9/00; H01G9/004; H01G9/04; H01G9/048; H01G9/042; H01G9/055; H01M; H01M4/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-09-24 | 1977-03-26 | 1977-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-24 | 1981-03-26 | 1981-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-24 | 1985-03-26 | 1985-09-25 | $7700.00 | Window Closed / Lapsed |