Fuel cell
CA 1306494 C · Owner: Sato, Yoshio · Inventors: Morishige, Eiji; Sato, Yoshio; Tsuneizumi, Hiroshi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A fuel cell comprises a cell member including a flat-plate separator, an air electrode a solid, electrolyte and a fuel electrode spacers arranged along, peripheries of the separators among the separators of the cell members stacked up, air supply paths for supplying air to the air electrodes, air being sent to the air electrodes through grooves of the flat-plate separators and air supply paths, air exhaust paths for exhausting excessive air, fuel supply paths for sending fuel to the fuel electrodes and fuel discharge paths for discharging excessive fuel. The fuel cell has an oxidation-resistant coating layer on the surface of the separator on the side of the air electrode. The solid …
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
- Granted August 18, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 18, 2009.
- 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.