US3355326A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of preparing electrodes
Assignee: Battelle Memorial Institute Inc
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Filing: 1963-06-03
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Granted: 1967-11-28
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Expires: 1983-06-03
Abstract
No abstract record available.
Inventors
- 👤 Donald E Semones
- 👤 Walter E Chase
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 12:57
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/86; H01M4/96; Y; Y02; Y02E; Y02E60/00; Y02E60/30; Y02E60/50
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
86 words
A METHOD OF PREPARING A FUEL ELECTRODE FOR USE IN A FUEL CELL THAT COMPRISES AFFIXING A SURFACE LAYER OF CATALYZED POROUS CARBON TO A POROUS SUPPORTING MEMBER OF CONDUCTIVE MATERIAL, PLACING THE ELECTRODE THUS MADE IN AN ELECTROLYTE HAVING SUBSTANTIALLY THE COMPOSITION OF THE ELECTROLYTE IN SAID FUEL CELL, ACTIVATING SAID SURFACE LAYER TO INCREASE ITS WETTABILITY BY FORCING A PREDETERMINED AMOUNT OF SAID ELECTROLYTE THROUGH SAID POROUS SUPPORTING MEMBER AND INTO SAID SURFACE LAYER AND THEREBY SATURATING SAID SURFACE LAYER WITH SAID ELECTROLYTE, AND
Claim 2
Independent Claim
86 words
A METHOD OF PREPARING A FUEL ELECTRODE FOR USE IN A FUEL CELL THAT COMPRISES AFFIXING A SURFACE LAYER OF CATALYZED POROUS CARBON TO A POROUS SUPPORTING MEMBER OF CONDUCTIVE MATERIAL, PLACING THE ELECTRODE THUS MADE IN AN ELECTROLYTE HAVING SUBSTANTIALLY THE COMPOSITION OF THE ELECTROLYTE IN SAID FUEL CELL, ACTIVATING SAID SURFACE LAYER TO INCREASE ITS WETTABILITY BY FORCING A PREDETERMINED AMOUNT OF SAID ELECTROLYTE THROUGH SAID POROUS SUPPORTING MEMBER AND INTO SAID SURFACE LAYER AND THEREBY SATURATING SAID SURFACE LAYER WITH SAID ELECTROLYTE, AND
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) | 1970-11-27 | 1971-05-29 | 1971-11-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-11-27 | 1975-05-29 | 1975-11-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-11-27 | 1979-05-29 | 1979-11-28 | $7700.00 | Window Closed / Lapsed |