Denture stabilizing compositions
CA 2203895 C · Owner: Gilday-Weber, Kimberly Ann · Inventors: Nichols, David Alan; Gilday-Weber, Kimberly Ann; Rajaiah, Jayanth
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention encompasses a denture adhesive composition relates to a , denture adhesive composition comprising a lower alkyl vinyl ether-maleic acid anhydride, or salt polymer or mixtures thereof and at least one non-adhesive , self-supporting layer. The present invention also relates to a denture adhesive composition comprising at least one non-adhesive self-supporting layer and at least two adhesive components wherein one of the adhesive components is a lower alkyl vinyl ether-maleic acid anhydride or salt polymer , of mixtures thereof.
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 September 18, 1995 and granted January 16, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 18, 2015.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 18, 2017.
- 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.