Fuel cell apparatus
CA 2253075 C · Owner: Matsushita Electric Industrial Co. Ltd. · Inventors: Sugawara, Yasushi; Uchida, Makoto; Ohara, Hideo
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
There is disclosed a fuel cell apparatus of a compact size using a hydrogen storage alloy in which, heat can be efficiently transmitted from fuel cell bodies to the hydrogen storage alloy. The fuel cell apparatus includes a plurality of fuel cell bodies a, hydrogen storage tank, a hydrogen supply device for supplying hydrogen to the fuel cell bodies from the hydrogen storage tank, an air feed device for supplying the air, supplying oxygen, a secondary battery and a, casing receiving the above components therein and the, casing has air intake ports and an air discharge port for the air feed device, and is formed into such a construction as to enable the hydrogen storage tank to be introduced …
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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 November 5, 1998 and granted April 8, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 5, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 5, 2020.
- 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.