Electrode including hydrophobic polymer,method of preparation and fuel cell therewith
Abstract
Abstract 1,165,677. Fuel cell electrodes. LEESONA CORP. 23 Sept., 1966 [30 Sept., 1965], No. 42458/66. Heading H1B. Electrodes are made by applying a mixture of a base metal and a hydrophobic polymer to a porous metal support, heating the resultant structure to bond or sinter the polymer and then replacing the exposed surface of the base metal with a more noble metal. The replacement can be (1) electrolytic; (2) by amalgamation with Hg followed by replacement of the Hg; (3) by using a multi-component or multi-phase base metal alloy, selectively corroding the components or phases and simultaneously or subsequently replacing the metal with a noble metal; or (4) by impregnating the base metal with hydrogen and then replacing electrolytically the hydrogen on the base metal with a noble metal, in a modification of this method the base metal is replaced by niobium oxide.
Inventors
- 👤 Peter D Richman
Bibliographic Details
Claims Analysis
Total Claims: 2References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-07-27 | 1974-01-26 | 1974-07-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-07-27 | 1978-01-26 | 1978-07-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-07-27 | 1982-01-26 | 1982-07-28 | $7700.00 | Window Closed / Lapsed |