Fuel cell
CA 2499861 C · Owner: Powercell Sweden Ab · Inventors: Schwartz, Stephan
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to a fuel cell comprising an electrolyte (2) provided with electrodes (3) in the form of an anode and a cathode on opposite sides of the electrolyte, and a system of flow ducts arranged so as to bring a first flow containing a first reactant into contact with an active surface (5) on the anode (3) and to bring a second flow containing a second reactant into contact with an active surface (5) on the cathode (3). The invention is characterized in that the system of flow ducts comprises a distribution arrangement adapted to distribute a flow incoming to the active surface (5) uniformly over an inlet region (24) which extends along the active surface (5).
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 September 17, 2003 and granted January 22, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 17, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 17, 2025.
- 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.