Thermal barrier coating
CA 2412265 C · Owner: Howmet Corporation · Inventors: Murphy, Kenneth S.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A ceramic thermal barrier coating on a substrate wherein the coating comprises primary columnar grains that extend transversely of a surface of the substrate and that include integral secondary columnar grains extending laterally therefrom relative to a respective column axis. The secondary columnar grains typically extend from the primary columnar grains at an acute angle of less than 90 degrees relative to the column axis of the primary columnar grains. The coating structure exhibits reduced thermal conductivity as compared to a conventional thermal barrier coating.
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 November 20, 2002 and granted February 21, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 20, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 20, 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.