A gas reformer for recovery of hydrogen
CA 2351867 A1 · Owner: Seki, Tsutomu · Inventors: Kawatani, Kouichi; Seki, Tsutomu; Oku, Manabu
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A ferritic stainless steel sheet containing 16-25 mass % of Cr and Ti and/or Nb at a ratio of (C+N) X 8 or more is used as a substrate for formation of a hydrogen-permeating membrane exposed to a high-temperature atmosphere of 600-900°C, while another ferritic stainless steel sheet containing Cr up to 15 mass % is, used as a substrate for formation of a hydrogen-permeating membrane exposed to a, high-temperature atmosphere of 450-600°C. The stainless steel sheet is formed to a, perforated body 3a with holes for passage of gas. A hydrogen-permeating membrane 3b, is fixed to on an external surface of the perforated body 3a to build up a hydrogen-separating pipe 3. A plurality of the …
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 June 26, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 26, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 26, 2023.
- 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.