Tooth coating composition
CA 2423415 C · Owner: Patacca, Thomas R. · Inventors: Frate, Dean M.; Patacca, Thomas R.; Patacca, Gregory G.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A film forming composition for coating teeth which is a mixture of about 0.5 % to about 30 % by weight of a film forming polymer; about 10 % to about 99.5 % by weight of solvent; about 0.05 % to about 40 % by weight of a rheology modifier; about 0.01 % to about 5 % by weight of a dispersant or plasticizer if necessary; and optionally up to about 30 % by weight of an opacifier or colorant.
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 10, 2001 and granted June 11, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 10, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 10, 2023.
- 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.