Metallic material susceptible to wear by abrasion; parts, housing; procedure for fabricating such material
CA 2431574 C · Owner: Vigneau, Joel · Inventors: Ribot, Didier; Braillard, Frederic; Perruchaut, Philippe
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention concerns: -a metallic material that can be worn away by abrasion principally consisting of a metal alloy based on nickel and/or cobalt which is (quasi) free of oxide or of a ceramic and having in its volume particles of solid lubricant and/or closed pores and/or surface recesses; -parts in particular plates, formed from said material; -casings the inner surface of which is at least partially covered with said plates; -a process for producing said material.
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 12, 2003 and granted August 2, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 12, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 12, 2025.
- 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.