US2930829A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas tight electrolytic cells and gas tight alkaline storage cells and separators therefor
Assignee: SAFT Societe des Accumulateurs Fixes et de Traction SA
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Filing: 1957-04-17
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Granted: 1960-03-29
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Expires: 1977-04-17
Abstract
No abstract record available.
Inventors
- 👤 Pierre A C Jacquier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 03:57
CPC Classifications
H; H01; H01M; H01M10/00; H01M10/24; H01M10/34; H01M50/00; H01M50/40; H01M50/409; H01M50/411; H01M50/429; H01M50/4295; H01M50/44; H01M50/489; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
86 words
AN ELECTROLYTIC CELL AND PARTICULARLY A SECONDARY CELL OF THE ALKALINE, CADMIUM-NICKEL TYPE WHICH OPERATES WITHOUT SUBSTANTIAL GAS EVOLUTION COMPRISING A CASING ELECTROLYTE, AT LEAST ONE POSITIVE ELECTRODE AND ONE NEGATIVE ELECTRODE AND A SEPARATOR DIAPHRAGM POSITIONED BETWEEN THE ELECTRODES, SAID ELECTRODES AND INTERPOSED SEPARATOR BEING CONFINED BY THE CASING AND SAID SEPARATOR CONSISTING OF LONG, ABSORBENT CELLULOSIC FIBERS DISPOSED IN SUBSTANTIAL PARALLELISM WITH PARTIAL INTERMINGLING OF FIBERS AND JOINED AT RANDOM POINTS BY CELLULOSIC BINDER TO PROVIDE A RETICULATE FIBER MASS WHOSE FIBERS SWELL WHEN
Claim 2
Dependent Claim
86 words
AN ELECTROLYTIC CELL AND PARTICULARLY A SECONDARY CELL OF THE ALKALINE, CADMIUM-NICKEL TYPE WHICH OPERATES WITHOUT SUBSTANTIAL GAS EVOLUTION COMPRISING A CASING ELECTROLYTE, AT LEAST ONE POSITIVE ELECTRODE AND ONE NEGATIVE ELECTRODE AND A SEPARATOR DIAPHRAGM POSITIONED BETWEEN THE ELECTRODES, SAID ELECTRODES AND INTERPOSED SEPARATOR BEING CONFINED BY THE CASING AND SAID SEPARATOR CONSISTING OF LONG, ABSORBENT CELLULOSIC FIBERS DISPOSED IN SUBSTANTIAL PARALLELISM WITH PARTIAL INTERMINGLING OF FIBERS AND JOINED AT RANDOM POINTS BY CELLULOSIC BINDER TO PROVIDE A RETICULATE FIBER MASS WHOSE FIBERS SWELL WHEN
References Cited (Backward Citations)
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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) | 1963-03-29 | 1963-09-28 | 1964-03-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-03-29 | 1967-09-28 | 1968-03-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-03-29 | 1971-09-28 | 1972-03-29 | $7700.00 | Window Closed / Lapsed |