US3553029A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrode with carbon layer and fuel cell therewith
Assignee: Edgewell Personal Care Brands LLC
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Filing: 1969-07-17
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Granted: 1971-01-05
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Expires: 1989-07-17
Abstract
Abstract A FUEL CELL INCLUDING A MULTLAYER ELECTRODE COMPRISING (A) A METAL LIQUID REPELLENT, GAS PERMEABLE LAYER, (B) A LIQUID PERMEABLE, CONDUCTIVE LAYER, AND (C) A MIDDLE LAYER CONTAINING CARBON. WHERE THE ELECTRODE IS A FUEL ELECTRODE, THE MIDDLE LAYER IS CATALYZED WITH METALS CATALYTICALLY ACTIVE IN FUEL CELL ANODE REACTIONS. THE REPELLENT CAN BE A HYDROPHOBIC RESIN, SUCH AS POLYTETRAFLUOROETHYLENE.
Inventors
- 👤 Karl V Kordesch
- 👤 William G Darland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 06:15
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/86; Y; Y02; Y02E; Y02E60/00; Y02E60/30; Y02E60/50
Claims Analysis
Total Claims: 0
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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) | 1974-01-04 | 1974-07-06 | 1975-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-04 | 1978-07-06 | 1979-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-04 | 1982-07-06 | 1983-01-05 | $7700.00 | Window Closed / Lapsed |