Cobalt-chromium superalloy
CA 1267796 C · Owner: Andrews, Henry Leroy · Inventors: Andrews, Henry Leroy; Gardiner, Gregory Eugene
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract An oxide dispersion strengthened cobalt-chronium superalloy produced by mechanical alloying containing a refractory oxide, preferably yttrium oxide and, characterized by excellent corrosion resistance high, fatigue strength and high temperature stability; and prostheses formed from said superalloy.
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 April 17, 1990. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 17, 2007.
- 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.