US3666563A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrode fabrication
Assignee: Standard Oil Co
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Filing: 1970-03-16
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Granted: 1972-05-30
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Expires: 1990-03-16
Abstract
Abstract A PROCESS FOR THE FABRICATION OF A FUEL CELL ELECTRODE, SAID PROCESS COMPRISING: (1) ADDING AN ACID TO A MIXTURE OF (A) SUPPORTED CATALYST-CONTAINING PARTICLES, (B) A MATERIAL WHICH WILL REACT EXOTHERMALLY WITH SAID ACID WHEN REACTION IS INITIATED, AND (C) A POLYMERIC THERMOPLASTIC; (2) HEATING THE ACID MIXTURE TO A TEMPERATURE SUFFICIENT TO SET OFF SAID EXOTHERMIC REACTION BETWEEN THE ACID AND THE REACTIVE MATERIAL, CAUSING THE TERMOLPLASTIC TO BECOME FLUID AND ADHERENT; AND (3) SUBJECTING THE REACTED ACID MIXTURE TO PRESSURE, THUS BONDING SAID PARTICLES TOGETHER.
Inventors
- 👤 Ahmad Sam
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 10:45
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/86; H01M4/8663; H01M4/8668; H01M4/88; H01M4/8825; H01M4/8842; H01M4/8878; H01M4/8882; H01M4/8896; H01M4/90; H01M4/92; H01M4/925; Y; Y02; Y02E; Y02E60/00; Y02E60/30; Y02E60/50; Y10; Y10S; Y10S44/00; Y10S44/901; Y10S44/902
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-05-30 | 1975-11-29 | 1976-05-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-30 | 1979-11-29 | 1980-05-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-30 | 1983-11-29 | 1984-05-30 | $7700.00 | Window Closed / Lapsed |