Tartar control denture adhesive compositions
CA 2392023 C · Owner: Becus, Marjorie Samuel · Inventors: Rajaiah, Jayanth; Case, Ann Maria; Ernst, Lisa Catron
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to a method of reducing controlling, inhibiting, preventing, protecting against or minimizing calculus, tartar, plaque or stain, in the oral cavity, by applying a denture adhesive composition to the oral cavity, the denture adhesive composition comprising: (a) a safe and effective adhesive amount of a denture adhesive component; and (b) a safe and effective amount of a non-aqueous denture adhesive carrier.
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 December 8, 2000 and granted April 19, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 8, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 8, 2022.
- 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.