US3364072A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fuel cell with platinum-rhodium containing catalyst
Assignee: Wyeth Holdings LLC
•
Filing: 1965-04-21
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Granted: 1968-01-16
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Expires: 1985-04-21
Abstract
No abstract record available.
Inventors
- 👤 Barber William Austin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:47
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/86; H01M4/90; H01M4/92; H01M2004/8678; H01M2004/8684; H01M2300/00; H01M2300/0002; H01M2300/0005; H01M2300/0011; Y; Y02; Y02E; Y02E60/00; Y02E60/30; Y02E60/50
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
73 words
A FUEL CELL UTILIZING HYDROGEN FUEL CONTAMINATED WITH CARBON MONOXIDE COMPRISING IN COMBINATION: A MATRIX AND ELECTRODES ABUTTING SAID MATRIX, AT LEAST ONE OF THE SAID ELECTRODES COMPRISING A FOUR-COMPONENT CATALYST MIXTURE CONTAINING (A) FROM ABOUT 15% TO ABOUT 35% PLATINUM, (B) FROM ABOUT 15% TO ABOUT 35% RHODIUM, (C) FROM ABOUT 5% TO ABOUT 35% TUNGSTEN OXIDE, AND (D) FROM ABOUT 5% TO ABOUT 35% MOLYBDENUM OXIDE ALL PERCENTAGES BEING BY WEIGHT.
Claim 2
Dependent Claim
73 words
A FUEL CELL UTILIZING HYDROGEN FUEL CONTAMINATED WITH CARBON MONOXIDE COMPRISING IN COMBINATION: A MATRIX AND ELECTRODES ABUTTING SAID MATRIX, AT LEAST ONE OF THE SAID ELECTRODES COMPRISING A FOUR-COMPONENT CATALYST MIXTURE CONTAINING (A) FROM ABOUT 15% TO ABOUT 35% PLATINUM, (B) FROM ABOUT 15% TO ABOUT 35% RHODIUM, (C) FROM ABOUT 5% TO ABOUT 35% TUNGSTEN OXIDE, AND (D) FROM ABOUT 5% TO ABOUT 35% MOLYBDENUM OXIDE ALL PERCENTAGES BEING BY WEIGHT.
References Cited (Backward Citations)
US3212930A
Cited
US3232887A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-01-15 | 1971-07-17 | 1972-01-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-01-15 | 1975-07-17 | 1976-01-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-01-15 | 1979-07-17 | 1980-01-16 | $7700.00 | Window Closed / Lapsed |