Preparation used in dental care
CA 2228091 C · Owner: Neva, Martti · Inventors: Leskinen, Kimmo; Neva, Martti; Hurme, Tapio
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A preparation used in dental care to protect the teeth which preparation is , anhydrous, with the possible exception of crystal water and by structure, for , example a powder solid tablet or other anhydrous compositions. The preparation contains a remineralising component pH buffer component, xylitol , and fluoride. Due to the effect of the water contained in the saliva or water added otherwise, the compounds in the preparation react with each other so as to bring about both a remineralisation reaction correcting cavity formation in the teeth, and a pH buffering reaction prevention cavity formation in the teeth.
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 July 26, 1996 and granted March 12, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 26, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 26, 2018.
- 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.