Protective coating for substrates subject to high temperature loading and method for making same
CA 2516222 C · Owner: Zahid, Mohsine · Inventors: Zahid, Mohsine; Quadakkers, Willem J.; Shemet, Vladimir
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
As a rule, chromium-oxide forming materials for high temperatures in , particular chromium-based alloys or chromium-rich alloys based on iron (ferritic steel) are used as , interconnector materials that are subjected to high temperatures. At SOFC operating temperatures said material group forms a , chromium-based oxidic top coating, which has the advantage of preventing rapid oxidation damage but , also the disadvantage of , continuing to react forming Cr(VI) compounds. Said volatile compounds react regularly with the cathode , material, producing the negative effect of impairing the oxygen reduction. The invention relates to a , gas--tight protective coating devoid of chromium, for …
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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 January 13, 2004 and granted September 25, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 13, 2024.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 13, 2026.
- 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.