Patent US3348974A successfully refreshed from Google Patents.
US3348974A
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Fuel cell containing a metalliized paper electrode
Assignee: Wyeth Holdings LLC
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Filing: 1963-07-01
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Granted: 1967-10-24
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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
2026-10-27 18:47
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
77 words
A FUEL CELL COMPRISING IN COMBINATION: A POROUS, HYDROPHILIC, NONCATAYLTIC, ELECTROLYTE-CONTAINING MATRIX AND DIRECTLY CONTACTED THEREWITH A METALLIZED PAPER SHEET ELECTRODE, SAID SHEET ELECTRODE COMPRISING IN ADMIXTURE: (A) AN UNFUSED, FIBRILLATED, SUBSTANTIALLY HYDROPHOBIC PAPER PULP IN AN AMOUNT RANGING FROM ABOUT 30% TO ABOUT 60%, (B) AN ELECTRO-CONDUCTIVE FILLER SELECTED FROM THE GROUP CONSISTING OF CARBON, TITANIUM, TANTALUM AND ZIRCONIUM, SAID FILLER BEING PRESENT IN AN AMOUNT RANGING FROM ABOUT 25% TO 50%, (C) A WATER-REPELLANT COMPOUND
Claim 2
Dependent Claim
77 words
A FUEL CELL COMPRISING IN COMBINATION: A POROUS, HYDROPHILIC, NONCATAYLTIC, ELECTROLYTE-CONTAINING MATRIX AND DIRECTLY CONTACTED THEREWITH A METALLIZED PAPER SHEET ELECTRODE, SAID SHEET ELECTRODE COMPRISING IN ADMIXTURE: (A) AN UNFUSED, FIBRILLATED, SUBSTANTIALLY HYDROPHOBIC PAPER PULP IN AN AMOUNT RANGING FROM ABOUT 30% TO ABOUT 60%, (B) AN ELECTRO-CONDUCTIVE FILLER SELECTED FROM THE GROUP CONSISTING OF CARBON, TITANIUM, TANTALUM AND ZIRCONIUM, SAID FILLER BEING PRESENT IN AN AMOUNT RANGING FROM ABOUT 25% TO 50%, (C) A WATER-REPELLANT COMPOUND
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) | 1970-10-23 | 1971-04-24 | 1971-10-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-23 | 1975-04-24 | 1975-10-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-23 | 1979-04-24 | 1979-10-24 | $7700.00 | Window Closed / Lapsed |