Hydrogen sensor
CA 2402813 A1 · Owner: Kitanoya, Shoji · Inventors: Kitanoya, Shoji; Nadanami, Norihiko; Watanabe, Masaya
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A hydrogen gas sensor is configured such that an O-ring 21 is disposed within a, measurement chamber 11a in order to seal against a first support element 9a and against, a proton conduction layer 1. This O-ring 21 assumes the form of a rectangular frame that, surrounds a first electrode 3 and a substantially circular cross section and , is elastic, heat, resistant, and durable. A first metal plate 23a and a second metal plate 23b are disposed, from the outside on opposite support elements 9a and 9b respectively. The , hydrogen gas, sensor of the present embodiment has a pair of right-hand and left-hand through-holes, 29 formed therein so as to extend along the thickness direction …
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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 September 12, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 12, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 12, 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.