Patent US3708341A successfully refreshed from Google Patents.
US3708341A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrode with passageways and weirshaped electrolyte collecting means
Assignee: Union Oil Company of California
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Filing: 1968-07-26
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Granted: 1973-01-02
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Expires: 1988-07-26
Abstract
Abstract BEING WEIR-SHAPED SEMI-CONDUITS ON SAID ELECTRDE PASSAGEWAY TO FORM A STATIC HEAD OF ACCUMULATED FLUID. 1. A POROUS FUEL CELL ELECTRODE HAVING A GAS SURFACE AND AN ELECTROLYTE SURFACE, A PLURALITY OF PASSAGEWAYS THERETHROUGH IN FLUID COMMUNICATION BETWEEN SAID GAS SURFACE AND SAID ELECTROLYTE SURFACE, A COATING OF HYDROPHOBIC MATERIAL ON SAID GAS SURFACE, A PLURALITY OF FLUID COLLECTING MEANS CORRESPONDING WITH SAID PASSAGEWAYS FOR COLLECTING DROPLETS OF ELECTROLYTE FORMED ON SAID GAS SURFACE, FOR CHANNELING THE ACCUMULATED ELECTROLYTE INTO SAID PASSAGEWAYS AND RETURNING SAID ELECTROLYTE TO SAID ELECTROLYTE SURFACE OF SAID ELECTRODE, SAID FLUID COLLECTING MEANS
Inventors
- 👤 R Biddick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:20
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/86; H01M8/00; H01M8/08; Y; Y02; Y02E; Y02E60/00; Y02E60/30; Y02E60/50
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
81 words
A POROUS FUEL CELL ELECTRODE HAVING A GAS SURFACE AND AN ELECTROLYTE SURFACE, A PLURALITY OF PASSAGEWAYS THERETHROUGH IN FLUID COMMUNICATION BETWEEN SAID GAS SURFACE AND SAID ELECTROLYTE SURFACE, A COATING OF HYDROPHOBIC MATERIAL ON SAID GAS SURFACE, A PLURALITY OF FLUID COLLECTING MEANS CORRESPONDING WITH SAID PASSAGEWAYS FOR COLLECTING DROPLETS OF ELECTROLYTE FORMED ON SAID GAS SURFACE, FOR CHANNELING THE ACCUMULATED ELECTROLYTE INTO SAID PASSAGEWAYS AND RETURNING SAID ELECTROLYTE TO SAID ELECTROLYTE SURFACE OF SAID ELECTRODE, SAID FLUID COLLECTING MEANS
Claim 2
Dependent Claim
81 words
A POROUS FUEL CELL ELECTRODE HAVING A GAS SURFACE AND AN ELECTROLYTE SURFACE, A PLURALITY OF PASSAGEWAYS THERETHROUGH IN FLUID COMMUNICATION BETWEEN SAID GAS SURFACE AND SAID ELECTROLYTE SURFACE, A COATING OF HYDROPHOBIC MATERIAL ON SAID GAS SURFACE, A PLURALITY OF FLUID COLLECTING MEANS CORRESPONDING WITH SAID PASSAGEWAYS FOR COLLECTING DROPLETS OF ELECTROLYTE FORMED ON SAID GAS SURFACE, FOR CHANNELING THE ACCUMULATED ELECTROLYTE INTO SAID PASSAGEWAYS AND RETURNING SAID ELECTROLYTE TO SAID ELECTROLYTE SURFACE OF SAID ELECTRODE, SAID FLUID COLLECTING MEANS
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) | 1976-01-02 | 1976-07-03 | 1977-01-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-01-02 | 1980-07-03 | 1981-01-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-01-02 | 1984-07-03 | 1985-01-02 | $7700.00 | Window Closed / Lapsed |