US2727083A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Silver peroxide battery and method of making
Assignee: Eagle Picher Co
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Filing: 1952-09-26
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Granted: 1955-12-13
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Expires: 1972-09-26
Abstract
No abstract record available.
Inventors
- 👤 Edward G Hollman
- 👤 Elliott M Morse
- 👤 James S Bone
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:10
CPC Classifications
H; H01; H01M; H01M10/00; H01M10/24; H01M10/32; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
135 words
THE METHOD OF MAKING A PRIMARY BATTERY OF THE ZINC-SILVER PEROXIDE CAUSTIC TYPE WHICH IS ADAPTED TO DELIVER UNIFORM CURRENT CONTINUOUSLY TO SUBSTANTIALLY THE FULL ELECTROLYTIC CAPACITY OF THE ACTIVE CHEMICALS WHICH CONSITUTE THE BATTERY, SAID METHOD COMPRISING THE FORMING OF THE POSITIVE ELECTRODE BY PASTING SILVER PEROXIDE UPON A GRID, SINTERING AND REDUCING SAID SILVER PEROXIDE ON THE GRID TO CONSTITUTE A SPONGY MASS OF METALLIC SILVER, POLARIZING SAID SILVER ELECTROLYTICALLY AT LOW CURRENT DENSITY, AND THE FORMING OF A NEGATIVE ELECTRODE BY ELETRO-PLATING ZINE UPON A GRID, THEN PHYSICALLY COMPACTING THE ZINC SO DEPOSITED TO SUCH A DEGREE THAT ITS SPONGINESS CORRESPONDS ELECTROLYTICALLY TO THE SPONGINESS OF THE POSITIVE ELECTRODE, WHEREBY THE ACTIVE SURFACE AREAS OF THE TWO ELECTRODES BEAR THE RELATIONSHIP TO EACH OTHER WHICH PROVIDES OPTIMUM OPERATING CURRENT DENSITIES FOR EACH.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-12-12 | 1959-06-13 | 1959-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-12-12 | 1963-06-13 | 1963-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-12-12 | 1967-06-13 | 1967-12-13 | $7700.00 | Window Closed / Lapsed |