Electrode for use in a gas fuel cell which contains a set of electrodes
CA 2021041 A1 · Owner: Quaadvliet, Henricus J. A. · Inventors: Quaadvliet, Henricus J. A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
1, N.O. 35743, Abstract, Electrode for use in a gas fuel cell into which a reactant gas is passed in order to generate electrical energy the electrode being, provided with a virtually flat catalyst for ionizing the gas a current, collector which is arranged in direct contact with and in electrical, contact with, a flat surface of said catalyst in order to convey the current which is produced by the ionization of the reactant gas said, current collector being provided with a number of linear ribs which form alternatingly open and closed channels along the flat surface of the catalyst through which the reactant gas can be passed wherein in the sections of the supporting plate are offset with …
Read the whole patent
Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Filed July 12, 1990. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 12, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 12, 2012.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.