US3595702A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Active mass for galvanic elements and frocess of making the same
Assignee: VARTA GmbH
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Filing: 1969-07-15
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Granted: 1971-07-27
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Expires: 1989-07-15
Abstract
Abstract AN ACTIVE DEPOLARIZER-ELECTROLYTE MASS FOR PRIMARY CELLS IS FORMED BY DISTRIBUTING A POLYELECTROLYTE IN THE CARBON BLACK- OR GRPAHITE-CONTAINING DEPOLARIZER MASS AND THEN PRECIPITATING AND CROSS-LINKING THE POLYELECTROLYTE BY ADDITION OF POLYVALENT METAL IONS OR HYDROGEN IONS CONTAINING PRINCIPAL ELECTROLYTE. THE COMPOSITION PERMITS SETTING UP OF THE ACTIVE MASS WITHOUT JEOPARDIZING ITS CONSISTENCY BY TOO MUCH OR TOO LITTLE STIRRING, THUS RESULTING IN AN IMPROVEMENT OF THE MOLDABILITY INTO DESIRED SHAPES OF THE MASS.
Inventors
- 👤 Winfried Krey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 10:03
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/02; H01M4/62; Y; Y02; Y02E; Y02E60/00; Y02E60/10
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) | 1974-07-26 | 1975-01-25 | 1975-07-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-26 | 1979-01-25 | 1979-07-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-26 | 1983-01-25 | 1983-07-27 | $7700.00 | Window Closed / Lapsed |