Expired Canadian patentCanada
Method for production of implant
CA 2088263 C · Owner: Kabushiki Kaisya Advance · Inventors: Yoshizawa, Masahiko; Shin, Yoshiharu; Hayashi, Osamu
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An implant is produced by coating a core material with a calcium phosphate type compound and converting the coating layer into an apatite type ceramic layer by a hydrothermal treatment.
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 16, 1992 and granted January 19, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 16, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 16, 2014.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJune 16, 1992
GrantedJanuary 19, 1999
Term endedJune 16, 2012
Patent numberCA 2088263 C
Classification (IPC)A61L27/00 +2 more
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.