Hemiarthroplasty application of zirconium oxide coated prosthesis
CA 2116307 A1 · Owner: Wright Medical Technology, Inc. · Inventors: Richelsoph, Kelly C.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention disclosed herein provides an improved low-wear implant for use in hemiarthroplasty wherein the implant is coated with zirconium oxide. The implant can be made entirely of zirconium or zirconium-containing metal alloys and then oxidized. One of the unique features of the device is that it is sized and shaped to cooperate with natural bone and/or cartilage, and thus is useful in, hemiarthroplasty in humans.
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 February 23, 1994. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 23, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 23, 2016.
- 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.