Low stringing toothpaste
CA 2136089 C · Owner: Miner, Philip E. · Inventors: Garlick, Theodore H. Jr.; Miner, Philip E.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A dentrifice composition is provided that includes a polyol present as a humectant and abrasive to clean teeth and a thickener system consisting of a low viscosity sodium carboxymethyl cellulose and a low viscosity hydroxyethyl cellulose. Preferably the dentifrice is in gel form and has the advantage of low stringiness and good phase stability.
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 May 25, 1993 and granted December 22, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 25, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 25, 2015.
- 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.