Ceramic/metal composite material
CA 1306147 C · Owner: Moltech Invent S.A. · Inventors: Doan, Kim Son; Lazouni, Abdelkrim; Nguyen, Thinh
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A ceramic/metal composite material comprises a surface ceramic coating comprising an oxidised alloy of copper stabilized by being in solid solution with nickel oxide or manganese oxide on a substrate which is an oxidation resistant alloy essentially devoid of copper or any metal which oxidises more readity than copper. The composite is made by oxidising a copper-based alloy on a substrate and simultaneously oxidising the substrate surface to form an oxygen-barrier interface for example a, chromium oxide layer formed on an alloy of chromium with nickel, iron and/or cobalt. The composite may be used as anode substrate for a cerium oxyfluoride coating used in aluminum electrowinning.
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
- Granted August 11, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 11, 2009.
- 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.