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US3697326A Expired / Lapsed US ⏱️ 0.0 years remaining

Battery including pair of air-depolarized cells

Assignee: SAFT Societe des Accumulateurs Fixes et de Traction SA
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Filing: 1971-06-09
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Granted: 1972-10-10
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Expires: 1991-06-09
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Abstract

Abstract PRIMARY ELECTRIC BATTERY COMPRISING AN OUTER METALLIC CUP COATED EXTERNALLY EXCEPT AT ITS BOTTOM WITH A CASING OF SYNTHETIC MATERIAL, THE BOTTOM CONSTITUTING ONE TERMINAL AND A METALLIC CAP IN THE COVER OF THE CASING CONSTITUTING THE OTHER TERMINAL. A PAIR OF FLAT AIR DEPOLARIZED CELLS CONNECTED IN PARALLEL ARE HOUSED IN THE CUP AND EMBODY MAIN TRAYS WHOSE OPENINGS FACE EACH OTHER AND WHOSE BOTTOMS ARE PARALLEL TO THE AXIS OF THE CUP, EACH OF THE TRAYS CONTAINING A NEGATIVE ELECTRODE, AN IMMOBILIZED ELECTROLYTE PREFERABLY CARRIED BY A SEPARATOR, AND A POSITIVE ELECTRODE ARRANGED IN LAYERS IN EACH TRAY. THE TRAYS ARE SEPARATED BY A SPACE IN COMMUNICATION WITH THE EXTERIOR OF THE BATTERY DURING ITS OPERAION. THE SPACE IS POSITIONED PREFERABLY BETWEEN THE POSITIVE ELECTRODES OF THE FACING TRAYS. THE POSITIVE AND NEGATIVE ELECTRODES OF BOTH TRAYS ARE PARRALLELLY CONNECTED ELECTRICALLY RESPECTIVELY TO THE METALLIC CAP AND THE METALLIC CUP. PROVISION IS MADE FOR EXPANSION OF THE NEGATIVE ELECTRODES WHEN THE BATTERIES ARE IN USE.

Inventors

  • 👤 Jean Firmin Jammet

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-28 06:53
CPC Classifications
H; H01; H01M; H01M10/00; H01M10/04; H01M10/0413; H01M10/0468; H01M12/00; H01M12/04; H01M12/06; H01M50/00; H01M50/50; H01M50/528; Y; Y02; Y02E; Y02E60/00; Y02E60/10; Y02P; Y02P70/00; Y02P70/50

Claims Analysis

Total Claims: 0
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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) 1975-10-10 1976-04-10 1976-10-10 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1979-10-10 1980-04-10 1980-10-10 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1983-10-10 1984-04-10 1984-10-10 $7700.00 Window Closed / Lapsed

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