Process for producing a calcium phosphate compound coated composite material
CA 1283029 C · Owner: Matsumoto, Yukiei · Inventors: Matsumoto, Yukiei; Hosonuma, Masashi; Shimamune, Takayuki
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A process for producing a calcium phosphate compound coated composite material is disclosed wherein a, coating layer of a calcium phosphate compound is formed on the surface of a metal substrate by coating the surface of said metal substrate with an aqueous solution of nitric acid having hydroxyapatite dissolved: therein and then, firing said coated substrate at a temperature of 300°C or more. The composite material is useful as implants (e.g. artificial bones dentures, and dental roots) and cements therefor.
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 16, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 16, 2008.
- 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.