US3258364A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for increasing effective electrode-electrolyte contact area in fuel cells
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1962-06-21
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Granted: 1966-06-28
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Expires: 1982-06-21
Abstract
No abstract record available.
Inventors
- 👤 Charles H Worsham
- 👤 Edward J Wickson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 17:06
CPC Classifications
H; H01; H01M; H01M8/00; H01M8/08; Y; Y02; Y02E; Y02E60/00; Y02E60/30; Y02E60/50
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
84 words
IN THE OPERATION OF AN ELECTROCHEMICAL CELL EMPLOYING AN AQUEOUS ELECTROLYTE AND AN ELECTRODE PARTIALLY IMMERSED IN SAID ELECTROLYE SO AS TO ADMIT OF PASSING A GASEOUS COMBUSTIBLE FUEL INT DUAL CONTACT WITH SAID ELECTRODE AND SAID ELECTROLYTE THEREBY ESTABLISHING AN AREA OF ELECTROCHEMICAL REACTION WHEREIN THE SAID FUEL IS OXIDIZED, THE IMPROVEMENT WHICH COMPRISES INTRODUCING TO INTO SAID ELECTROLYTE A NONIONIC SURFCE-ACTING AGENT IN AN AMOUNT SUFFICIENT TO ENLARGE SAID AREA AND INSUFFICIENT TO REDUCE THE TOTAL ELECTROCHEMICAL REACTION INCLUDED IN SAID ELECTRODE.
Claim 2
Dependent Claim
84 words
IN THE OPERATION OF AN ELECTROCHEMICAL CELL EMPLOYING AN AQUEOUS ELECTROLYTE AND AN ELECTRODE PARTIALLY IMMERSED IN SAID ELECTROLYE SO AS TO ADMIT OF PASSING A GASEOUS COMBUSTIBLE FUEL INT DUAL CONTACT WITH SAID ELECTRODE AND SAID ELECTROLYTE THEREBY ESTABLISHING AN AREA OF ELECTROCHEMICAL REACTION WHEREIN THE SAID FUEL IS OXIDIZED, THE IMPROVEMENT WHICH COMPRISES INTRODUCING TO INTO SAID ELECTROLYTE A NONIONIC SURFCE-ACTING AGENT IN AN AMOUNT SUFFICIENT TO ENLARGE SAID AREA AND INSUFFICIENT TO REDUCE THE TOTAL ELECTROCHEMICAL REACTION INCLUDED IN SAID ELECTRODE.
References Cited (Backward Citations)
US2925454A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-06-27 | 1969-12-27 | 1970-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-06-27 | 1973-12-27 | 1974-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-06-27 | 1977-12-27 | 1978-06-28 | $7700.00 | Window Closed / Lapsed |