Porous metals and metal coatings for implants
CA 2438801 A1 · Owner: Li, Jia Ping · Inventors: De Groot, Klaas; Li, Jia Ping; Layrolle, Pierre Jean Francois
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention is directed to a method of preparing porous metals as well as , to these porous metals per se. More in particular the invention is directed to the use of these porous metals in the preparation of medical items such as , implants. The invention further relates to a method of providing a porous metal coating on a substrate, in particular on the surface of a medical item such as an implant or scaffold for tissue engineering. According to the method of the invention, a polymeric foam is impregnated with a slurry of metal particles, such as titanium, tantalum, titanium alloy or tantalum alloy particles. The impregnated foam is subsequently dried and subjected to pyrolysis and …
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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 18, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 18, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 18, 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.