Stable dentifrice compositions
CA 2530399 C · Owner: Carale, M. Teresa R. · Inventors: Prencipe, Michael; Boyd, Thomas J.; Carale, M. Teresa R.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A cationic-compatible inorganic particulate comprising silica substantially coated with a non-ionic surfactant such as an ethoxylated , hydrogenated hydrocarbon oil. Compositions comprising the cationic-compatible particulate and a , cationic active, such as cetyl pyridinium chloride or an ethyl lauryl arginine ester, are , also provided. The compositions may be used for oral care.
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 June 23, 2004 and granted August 21, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 23, 2024.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 23, 2026.
- 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.