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US3181973A Expired / Lapsed US ⏱️ 0.0 years remaining

Fuel cell electrode and method of making the same

Assignee: Exide Technologies LLC
•
Filing: 1960-12-28
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Granted: 1965-05-04
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Expires: 1980-12-28
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Abstract

No abstract record available.

Inventors

  • 👤 Joseph C Duddy

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-25 14:46
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/86; H01M4/88; H01M4/8825; H01M4/8846; H01M4/885; H01M4/8875; Y; Y02; Y02E; Y02E60/00; Y02E60/30; Y02E60/50

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 118 words
A METHOD OF MANUFACTURING A FUEL CELL ELECTRODE WHICH COMPRISES INTIMATELY AND HOMOGENEOUSLY MIXING A PLASTICIZED THERMOPLASTIC RESIN, PLASTICIZED POLYETHYLENE OXIDE IN A RATION BASED UPON PARTS BY WEIGHT OF SAID THERMOPLASTIC RESIN OF BETWEEN 1-3 AND 3-1, A POWDERED ELECTRICALLY CONDUCTIVE ELECTRODE MATERIAL SELECTED FROM THE GROUP CONSISTING OF SILVER, NICKEL, MIXTURES OF SILVER AND NICKEL, COPPER, AND GRAPHITE IN AN AMOUNT SUFFICIENT TO BE DISPERSED IN A CONTINUOUS PHASE THROUGHOUT SAID INTIMATELY MIXED THERMOPLASTIC RESIN AND PALLADIUM OXIDE TO PRODUCE A PLASTICIZED MASS, SAID THERMOPLASTIC RESIN BEING INSOLUBLE IN SAID POLYETHYLENE OXIDE AND ALKALINE ELECTROLYTES, SHAPING SAID MASS TO PRODUCE A FUEL CELL ELECTRODE, AND CONVERTING SAID PALLADIUM OXIDE TO METALLIC PALLADIUM IN AN ALKALINE ELECTROLYTE.
Claim 2
Independent Claim 118 words
A METHOD OF MANUFACTURING A FUEL CELL ELECTRODE WHICH COMPRISES INTIMATELY AND HOMOGENEOUSLY MIXING A PLASTICIZED THERMOPLASTIC RESIN, PLASTICIZED POLYETHYLENE OXIDE IN A RATION BASED UPON PARTS BY WEIGHT OF SAID THERMOPLASTIC RESIN OF BETWEEN 1-3 AND 3-1, A POWDERED ELECTRICALLY CONDUCTIVE ELECTRODE MATERIAL SELECTED FROM THE GROUP CONSISTING OF SILVER, NICKEL, MIXTURES OF SILVER AND NICKEL, COPPER, AND GRAPHITE IN AN AMOUNT SUFFICIENT TO BE DISPERSED IN A CONTINUOUS PHASE THROUGHOUT SAID INTIMATELY MIXED THERMOPLASTIC RESIN AND PALLADIUM OXIDE TO PRODUCE A PLASTICIZED MASS, SAID THERMOPLASTIC RESIN BEING INSOLUBLE IN SAID POLYETHYLENE OXIDE AND ALKALINE ELECTROLYTES, SHAPING SAID MASS TO PRODUCE A FUEL CELL ELECTRODE, AND CONVERTING SAID PALLADIUM OXIDE TO METALLIC PALLADIUM IN AN ALKALINE ELECTROLYTE.

References Cited (Backward Citations)

US2384463A Cited
US2738375A Cited
US2708683A Cited
US2772322A Cited
US2838590A Cited
US2806256A Cited
US2819981A Cited
US2860175A Cited
US2902530A Cited
US2936328A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1968-05-03 1968-11-02 1969-05-04 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1972-05-03 1972-11-02 1973-05-04 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1976-05-03 1976-11-02 1977-05-04 $7700.00 Window Closed / Lapsed

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