US3239382A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fuel cell catalysts
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1960-09-27
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Granted: 1966-03-08
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Expires: 1980-09-27
Abstract
No abstract record available.
Inventors
- 👤 Charles E Thompson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 01:21
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/86; H01M4/90; H01M4/92; H01M2004/8678; H01M2004/8689; H01M2300/00; H01M2300/0002; H01M2300/0005; H01M2300/0011; H01M4/921; Y; Y02; Y02E; Y02E60/00; Y02E60/30; Y02E60/50
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
110 words
IN A FUEL CELL COMPRISING A CATHODE AND AN ANODE SPACED APART AND IN CONTACT WITH AN ACID ELECTROLYTE, MEANS FOR PASSING A FLUID COMBUSTIBLE FUEL INTO CONTACT WITH SAID ANODE, MEANS FOR PASSING AN OXIDIZING GAS INTO CONTACT WITH SAID CATHODE, ELECTRICAL CONDUCTION MEANS CONNECTING SAID ANODE AND SAID CATHODE EXTERNAL TO SAID FUEL CELL, SAID ACID ELECTROLYTE PROVIDING INTERNAL ELECTRICAL CONNECTION BETWEEN SAID ANODE AND SAID CATHODE, THE IMPROVEMENT WHICH COMPRISES HAVING AS SAID CATHODE AN ELECTRICALLY CONDUCTIVE STRUCTURE WITH A CATALYST THEREON, SAID CATALYST CONSISTING OF A MAJOR PORTION OF A METAL SELECTED FROM THE GROUP CONSISTING OF PLATINUM AND PALLADIUM AND A MINOR PORTION OF GOLD.
Claim 2
Dependent Claim
110 words
IN A FUEL CELL COMPRISING A CATHODE AND AN ANODE SPACED APART AND IN CONTACT WITH AN ACID ELECTROLYTE, MEANS FOR PASSING A FLUID COMBUSTIBLE FUEL INTO CONTACT WITH SAID ANODE, MEANS FOR PASSING AN OXIDIZING GAS INTO CONTACT WITH SAID CATHODE, ELECTRICAL CONDUCTION MEANS CONNECTING SAID ANODE AND SAID CATHODE EXTERNAL TO SAID FUEL CELL, SAID ACID ELECTROLYTE PROVIDING INTERNAL ELECTRICAL CONNECTION BETWEEN SAID ANODE AND SAID CATHODE, THE IMPROVEMENT WHICH COMPRISES HAVING AS SAID CATHODE AN ELECTRICALLY CONDUCTIVE STRUCTURE WITH A CATALYST THEREON, SAID CATALYST CONSISTING OF A MAJOR PORTION OF A METAL SELECTED FROM THE GROUP CONSISTING OF PLATINUM AND PALLADIUM AND A MINOR PORTION OF GOLD.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-03-07 | 1969-09-06 | 1970-03-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-07 | 1973-09-06 | 1974-03-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-07 | 1977-09-06 | 1978-03-08 | $7700.00 | Window Closed / Lapsed |