Patent US2800521A successfully refreshed from Google Patents.
US2800521A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrode for electrochemical cell
Assignee: Duracell Inc USA
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Filing: 1954-09-27
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Granted: 1957-07-23
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Expires: 1974-09-27
Abstract
No abstract record available.
Inventors
- 👤 Victor G Olcott
- 👤 Edward G Zymkowitz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 08:22
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/02
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
66 words
A METHOD OF FABRICATING AN ELECTRODE OF HIGH CURRENT CARRYING CHARACTERISTICS COMPRISING THE STEPS OF APPLYING SHEET OF METALLIC FOIL TO A NEOPRENE BACKING, PLACING A SCREEN OF A DESIRED MESH AND CONTAINING INTERSTICES FORMED OF ITS MULTIPLE CROSSING STRANDS AGAINST SAID SHEET OF FOIL, APPLYING PRESSURE THERETO SO AS TO SHEAR SAID FOIL AND TO FORCE IT INTO SAID INTERSTICES WHILE AT THE SAME TIME
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) | 1960-07-22 | 1961-01-21 | 1961-07-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-07-22 | 1965-01-21 | 1965-07-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-07-22 | 1969-01-21 | 1969-07-23 | $7700.00 | Window Closed / Lapsed |