Method of processing medical metal material
CA 2129340 A1 · Owner: Koyama, Kazuaki · Inventors: Ishii, Nobuo; Koyama, Kazuaki; Horikawa, Takashi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The process forms medical metal materials of titanium and alloys thereof, which are dissolution-free and highly corrosion-resistant and suitable for use in medical implants and surgical operation tools into complicated shapes. The, process uses discharge processing which is excellent for precision thus permitting, full use of the intrinsic functions of the medical tools and also permitting excellent dissolution freedom and high corrosion resistance to be obtained. For the electrode wire is used titanium or an alloy thereof or platinum or an alloy thereof thus, preventing the spoiling of the excellent dissolution freedom and high corrosion resistance intrinsic to the metal material and …
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 10, 1993. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 10, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 10, 2015.
- 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.