US2987567A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dry-charged negative electrode
Assignee: Exide Technologies LLC
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Filing: 1957-06-25
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Granted: 1961-06-06
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Expires: 1977-06-25
Abstract
No abstract record available.
Inventors
- 👤 Clark R Freas
- 👤 William J Schlotter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:39
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/02; H01M4/24; H01M4/244; H01M4/64; H01M4/70; H01M4/75; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
70 words
A NEGATIVE ELECTRODE CHARACTERIZED BY THE ABSENCE THEREFROM OF ELECTROLYTE FOR DRY-CHARGED ALKALINE BATTERIES COMPRISING A PERFORATED ZINC PLATE, ELECTROCHEMICALLY ACTIVE ZINC IN CURRENT-CARRYING RELATION WITH SAID ZINC PLATE, A CURRENT-CARRYING GRID IMBEDDED IN SAID METALLIC ZINC, AT LEAST ONE LAYER OF ZINC OXIDE IN FACE-TO-FACE RELATION WITH SAID METALLIC ZINC AND IN ELECTRICAL CURRENT-CARRYING RELATION THEREWITH, AND AN ELECTROLYTE-PERVIOUS SHEET MATERIAL DISPOSED AGAINST THE OPPOSITE FACES OF THE ELECTRODE.
Claim 2
Dependent Claim
70 words
A NEGATIVE ELECTRODE CHARACTERIZED BY THE ABSENCE THEREFROM OF ELECTROLYTE FOR DRY-CHARGED ALKALINE BATTERIES COMPRISING A PERFORATED ZINC PLATE, ELECTROCHEMICALLY ACTIVE ZINC IN CURRENT-CARRYING RELATION WITH SAID ZINC PLATE, A CURRENT-CARRYING GRID IMBEDDED IN SAID METALLIC ZINC, AT LEAST ONE LAYER OF ZINC OXIDE IN FACE-TO-FACE RELATION WITH SAID METALLIC ZINC AND IN ELECTRICAL CURRENT-CARRYING RELATION THEREWITH, AND AN ELECTROLYTE-PERVIOUS SHEET MATERIAL DISPOSED AGAINST THE OPPOSITE FACES OF THE ELECTRODE.
References Cited (Backward Citations)
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US2600526A
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US2669595A
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US2640864A
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US2830108A
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US2739179A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-06-05 | 1964-12-05 | 1965-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-06-05 | 1968-12-05 | 1969-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-06-05 | 1972-12-05 | 1973-06-06 | $7700.00 | Window Closed / Lapsed |