US3775182A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tubular electrochemical cell with coiled electrodes and compressed central spindle
Assignee: EIDP Inc
•
Filing: 1972-02-25
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Granted: 1973-11-27
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Expires: 1992-02-25
Abstract
Abstract Disclosed herein is a tubular electrochemical cell having electrolyte therein and having anode(s), cathode(s) with separator(s) therebetween all coiled around a central spindle, the cell having a cap which is compressively affixed thereto so that one terminal of the cell is in compressive contact with the electrically conductive area of the tubular casing and the other is in compressive contact with the electrically conductive area of the cap.
Inventors
- 👤 J Patton
- 👤 K Wuttke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 08:30
CPC Classifications
H; H01; H01M; H01M10/00; H01M10/04; H01M10/0431; H01M50/00; H01M50/50; Y; Y02; Y02E; Y02E60/00; Y02E60/10; Y02P; Y02P70/00; Y02P70/50
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2807658A
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US3156585A
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US3245837A
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US3364069A
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US3373060A
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US3355329A
Cited
US3503806A
Cited
US3510353A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-11-26 | 1977-05-28 | 1977-11-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-11-26 | 1981-05-28 | 1981-11-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-11-26 | 1985-05-28 | 1985-11-27 | $7700.00 | Window Closed / Lapsed |