Mold for fuel cell separator, method of producing fuel cell separator, fuel cell separator, apparatus of producing fuel cell separator and fuel cell
CA 2485797 C · Owner: Tomizawa, Takeshi · Inventors: Hatoh, Kazuhito; Tomizawa, Takeshi; Miyoshi, Masaaki
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A mold for a use of making a fuel cell separator comprises: a first flow path forming portion to form a cooling medium flowing path or to form an oxidizing gas flowing path or to form a fuel gas flowing path; and an injection gate to shoot out a forming material settled on the first flow path and/or disposed at near place with the first flow path.
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 October 25, 2004 and granted June 25, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 25, 2024.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
- 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.