Dental restoration material
CA 1263792 C · Owner: Blendax Gmbh · Inventors: Kuhlmann, Werner
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Dental restoration materials with improved properties particu-, larly X-ray opacity and polishability are obtained, if they con-, tain fillers and polymerizable compounds consisting in total or in part of one or more compounds of the general formula where R represents H or a methyl group X is representing a CH2-CH2-0-, CH2-CH2-CH2-0-; or and n means 0 to 3.
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 December 5, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 5, 2006.
- 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.