US3328205A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fuel cell containing a metallized paper electrode
Assignee: Wyeth Holdings LLC
•
Filing: 1963-07-01
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Granted: 1967-06-27
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Expires: 1983-07-01
Abstract
No abstract record available.
Inventors
- 👤 Barber William Austin
- 👤 Woodberry Norman Thorndike
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:05
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/86; Y; Y02; Y02E; Y02E60/00; Y02E60/30; Y02E60/50
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
78 words
A FUEL CELL COMPRISING IN COMBINATIN: A POROUS, HYDROPHILIC, NON-CATLYTIC, ELECTROLYTE-CONTAINING MATRIX AND A METALLIZED PAPER ELECTRODE, SAID ELECTRODE COMPRISING: (A) AN UNFUSED FIBRILLATED, SUBSTANTIALLY HYDROPHOBIC PAPER SHEET AS A SUPPORT FOR AN ACTIVE METAL CATALYST UNIFORMLY DISTRIBUTED THERETHROUGH AND (B) AN ACTIVE METAL CATALYST PRESENT IN SAID SHEET IN AN AMOUNT RANGING FROM ABOUT 25% TO ABOUT 65%, BASED ON THE WEIGHT OF THE OVERALL RESULTANT ELECTRODE SHEET, SID MATRIX BEING IN DIRECT CONTACT WITH SAID ELECTRODE.
Claim 2
Dependent Claim
78 words
A FUEL CELL COMPRISING IN COMBINATIN: A POROUS, HYDROPHILIC, NON-CATLYTIC, ELECTROLYTE-CONTAINING MATRIX AND A METALLIZED PAPER ELECTRODE, SAID ELECTRODE COMPRISING: (A) AN UNFUSED FIBRILLATED, SUBSTANTIALLY HYDROPHOBIC PAPER SHEET AS A SUPPORT FOR AN ACTIVE METAL CATALYST UNIFORMLY DISTRIBUTED THERETHROUGH AND (B) AN ACTIVE METAL CATALYST PRESENT IN SAID SHEET IN AN AMOUNT RANGING FROM ABOUT 25% TO ABOUT 65%, BASED ON THE WEIGHT OF THE OVERALL RESULTANT ELECTRODE SHEET, SID MATRIX BEING IN DIRECT CONTACT WITH SAID ELECTRODE.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-06-26 | 1970-12-26 | 1971-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-06-26 | 1974-12-26 | 1975-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-06-26 | 1978-12-26 | 1979-06-27 | $7700.00 | Window Closed / Lapsed |