Planar and essentially rectangular fuel cell and fuel cell block
CA 2439976 A1 · Owner: Mattejat, Arno · Inventors: Illner, Dieter; Mattejat, Arno; Lersch, Josef
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 planar, rectangular and water-cooled fuel cell (21) comprising a cooling element (1, 23) with a cooling chamber (3) through which cooling water flows during the operation of the fuel cell (21). Cooling water does not flow through said cooling chamber (3) in a homogeneous manner normally resulting in local heating of said fuel cell (21) in regions through which the cooling water flows through less frequently. The aim of the invention is to solve said problem by producing a fuel cell (21) which is provided with a cooling element (1, 23) which comprises an essentially rectangular cooling chamber (3) with four corner regions whereby the opening , of a coolant …
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 February 22, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 22, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 22, 2024.
- 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.