Fuel cell and fuel cell stack
CA 2490448 A1 · Owner: Honda Giken Kogyo Kabushiki Kaisha · Inventors: Tsunoda, Tadashi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A fuel cell (10) includes a pair of separators (58) and a plurality of electrolyte electrode assemblies (56) between the separators (58). The electrolyte electrode assemblies (56) has a small circular disk shape. Eight electrolyte electrode assemblies (58) are arranged along an inner circle (P1) and eight electrolyte electrode assemblies (58) are arranged along an outer circle (P2) concentric with a circular hole (44). Each of the separators (58) includes a plurality of plates (60, 62) stacked together. A fuel gas channel (67) for supplying a fuel gas to anodes (54) of the electrolyte electrode assemblies (56), an oxygen-containing gas channel (82) for supplying an oxygencontaining …
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 June 26, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 26, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 26, 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.