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Patent US3445294A successfully refreshed from Google Patents.
US3445294A
Expired / Lapsed
US
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Electrode backing plate for fuel cells
Assignee: Allis Chalmers Corp
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Filing: 1965-10-20
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Granted: 1969-05-20
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Expires: 1985-10-20
Abstract
No abstract record available.
Inventors
- 👤 Ronald James Leonard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 06:58
CPC Classifications
H; H01; H01M; H01M8/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
111 words
A FUEL CELL BACKING PLATE ASSEMBLY COMPRISING IN COMBINATION A PLATE HAVING A FIRST AND A SECOND MAJOR SURFACE; A GAS DISTRIBUTION MEANS DEFINED WITHIN EACH MAJOR SURFACE; A FUEL CELL ELECTRODE MOUNTED ON SAID FIRST MAJOR SURFACE; A CAPILLARY MATRIX MOUNTED ON SAID SECOND MAJOR SURFACE; MEANS FOR SUPPLYING REACTANT GAS TO THE GAS DISTRIBUTION MEASN DEFINED WITHIN THE SECOND MAJOR SURFACE FOR CONTACT WITH THE CAPILLARY MATRIX PRIOR TO ITS CONTACTING SAID FUEL CELL ELECTRODE; AND MEANS FOR DIVERTING SAID REACTANT GAS AFTER CONTACTING SAID CAPILLARY MATRIX ONTO THE GAS DISTRIBUTION MEANS DEFINED IN THE FIRST MAJOR SURFACE AND OUTLET MEANS FOR REMOVING GAS FROM SAID GAS DISTRIBUTION MEANS.
Claim 2
Dependent Claim
111 words
A FUEL CELL BACKING PLATE ASSEMBLY COMPRISING IN COMBINATION A PLATE HAVING A FIRST AND A SECOND MAJOR SURFACE; A GAS DISTRIBUTION MEANS DEFINED WITHIN EACH MAJOR SURFACE; A FUEL CELL ELECTRODE MOUNTED ON SAID FIRST MAJOR SURFACE; A CAPILLARY MATRIX MOUNTED ON SAID SECOND MAJOR SURFACE; MEANS FOR SUPPLYING REACTANT GAS TO THE GAS DISTRIBUTION MEASN DEFINED WITHIN THE SECOND MAJOR SURFACE FOR CONTACT WITH THE CAPILLARY MATRIX PRIOR TO ITS CONTACTING SAID FUEL CELL ELECTRODE; AND MEANS FOR DIVERTING SAID REACTANT GAS AFTER CONTACTING SAID CAPILLARY MATRIX ONTO THE GAS DISTRIBUTION MEANS DEFINED IN THE FIRST MAJOR SURFACE AND OUTLET MEANS FOR REMOVING GAS FROM SAID GAS DISTRIBUTION MEANS.
References Cited (Backward Citations)
US3317348A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-05-19 | 1972-11-18 | 1973-05-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-05-19 | 1976-11-18 | 1977-05-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-05-19 | 1980-11-18 | 1981-05-20 | $7700.00 | Window Closed / Lapsed |