Antimicrobial dental materials containing 2,4,4'-trichloro-2'-hydroxydiphenyl ether
CA 2288331 A1 · Owner: Dentsply International Inc. · Inventors: Noack, Michael J.; Pflug, Kai
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Polymerizable dental materials having an antimicrobial effect are provided. These include dental materials such as protective dental varnishes composites, compomers, fissure sealants dental cements, dental bonding agents and similar materials, and containing 2,4,4'-trichloro-2'-hydroxydiphenyl ether.
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 April 27, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 27, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 27, 2020.
- 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.