Calcified tissue facing preparation containing an antimicrobial agent
CA 2344697 C · Owner: Pelerin, Joseph J. · Inventors: Pelerin, Joseph J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention provides a calcified tissue facing preparation characterized by having a polymerizable resin and an antimicrobial agent of , formula (I) where R1 is a hydrocarbon radical having between 1 and 16 carbon atoms, n is an integer between 1 and 8 inclusive and X is a halogen atom selected from fluorine, chlorine or bromine. It is appreciated that R1 includes unsaturated hydrocarbon radicals as well as heteroatom containing , radicals. Preferably the molecule of formula (I) is associated with an adduct species. A solvent and the complementary spectrum antimicrobial benzalkonium chloride are also optionally added. An antimicrobial oral rinse excluding the polymerizable …
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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 23, 1999 and granted November 13, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 23, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 23, 2021.
- 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.