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US3589945A Expired / Lapsed US ⏱️ 0.0 years remaining

Stacked metal gas-cells

Assignee: General Electric Co
•
Filing: 1969-08-21
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Granted: 1971-06-29
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Expires: 1989-08-21
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Abstract

Abstract AN ELECTROCHEMICAL CELL HAS A FIRST ELECTRODE AND A SECOND ELECTRODE, AN AQUEOUS ELECTROLYTE POSITIONED BETWEEN AND IN CONTACT WITH THE ELECTRODES, AND AT LEAST ONE OF THE ELECTRODES IS A GAS DIFFUSION ELECTRODE IMMERSED PARTIALLY IN THE ELECTROLYTE AND THE REMAINING PORTION OF THE ELECTRODE EXPOSED TO A GASEOUS MEDIUM. A MODIFIED ELECTROCHEMICAL CELL HAS A CASTING WITH AN AQUEOUS ELECTROLYTE THEREIN, A FIRST ELECTRODE IN CONTACT WITH THE ELECTROLYTE AND SPACED FROM THE FIRST ELECTRODE, AND AT LEAST ONE OF THE ELECTRODES IS A GAS DIFFUSION ELECTRODE IMMERSED PARTIALLY IN THE ELECTROLYTE AND THE REMAINING PORTION OF THE ELECTRODE EXPOSED TO A GASEOUS MEDIUM. FOR EXAMPLE, SUCH CELLS ARE OPERATED AS METAL-AIR CELLS, METAL-FUEL CELLS, AND FUEL CELLS.

Inventors

  • 👤 Harold A Christopher
  • 👤 Paul J Moran

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-28 09:24
CPC Classifications
H; H01; H01M; H01M12/00; H01M12/04; H01M12/06; H01M8/00

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) 1974-06-28 1974-12-28 1975-06-29 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1978-06-28 1978-12-28 1979-06-29 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1982-06-28 1982-12-28 1983-06-29 $7700.00 Window Closed / Lapsed

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