Ceramic material for dental applications and a method for the production thereof
CA 2410448 A1 · Owner: Heraeus Kulzer Gmbh & Co. Kg · Inventors: Wiedemann, Wolfgang
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to a dental ceramic comprising a sinter body with a proportion of more than 90 % by weight hydroxylapatite (HA; Ca5(PO4)3OH). The ceramic can be simply produced and exhibits excellent strength and optical characteristics that resemble a natural material if the sinter body is , anisotropic.
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 6, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 6, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 6, 2023.
- 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.