US3297487A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fuel cell
Assignee: EIDP Inc
•
Filing: 1964-10-16
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Granted: 1967-01-10
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Expires: 1984-10-16
Abstract
No abstract record available.
Inventors
- 👤 Chester M Pomeroy
- 👤 John W Way
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 15:07
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/86; Y; Y02; Y02E; Y02E60/00; Y02E60/30; Y02E60/50
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
87 words
IN A FUEL CELL COMPOSED OF TWO CONDUCTIVE ELECTRODES SEPARATED BY AN ACIDIC ELECTROLYTE, A FUEL SUPPLY, AN OXIDANT SUPPLY AND MEANS FOR ELECTRICALLY CONNECTING THE ELECTRODES, THE IMPROVEMENT WHEREIN AT LEAST ONE ELECTRODE IS A CATALYST-COATED METAL/SILICON COMBINATION SELECTED FROM THE GROUP CONSISTING OF METAL-SILICON ALLOYS AND METAL SILICIDES, THE PERCENTAGE OF SILICON IN SAID COMBINATION BEING FROM ABOUT 8% TO ABOUT 75% BY WEIGHT, THE BALANCE BEING SUBSTANTIALLY SAID METAL SELECTED FROM THE GROUP CONSISTING OF NICKEL, COBALT, IRON, MOLYBDENUM, MANGANESE, VANADIUM, TUNGSTEN AND CHROMIUM.
Claim 2
Dependent Claim
87 words
IN A FUEL CELL COMPOSED OF TWO CONDUCTIVE ELECTRODES SEPARATED BY AN ACIDIC ELECTROLYTE, A FUEL SUPPLY, AN OXIDANT SUPPLY AND MEANS FOR ELECTRICALLY CONNECTING THE ELECTRODES, THE IMPROVEMENT WHEREIN AT LEAST ONE ELECTRODE IS A CATALYST-COATED METAL/SILICON COMBINATION SELECTED FROM THE GROUP CONSISTING OF METAL-SILICON ALLOYS AND METAL SILICIDES, THE PERCENTAGE OF SILICON IN SAID COMBINATION BEING FROM ABOUT 8% TO ABOUT 75% BY WEIGHT, THE BALANCE BEING SUBSTANTIALLY SAID METAL SELECTED FROM THE GROUP CONSISTING OF NICKEL, COBALT, IRON, MOLYBDENUM, MANGANESE, VANADIUM, TUNGSTEN AND CHROMIUM.
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) | 1970-01-09 | 1970-07-11 | 1971-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-09 | 1974-07-11 | 1975-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-09 | 1978-07-11 | 1979-01-10 | $7700.00 | Window Closed / Lapsed |