Stable herbal dentifrice
CA 2444662 A1 · Owner: Nayar, Bala · Inventors: Xu, Jin; Nayar, Bala; Healy, Marissa
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A dentifrice gel or paste comprising from about 40% to 70% by weight baking soda, from about 0.5% to 5% by weight of a blend of natural ingredients from , about 0.5% to 5% by weight of a flavoring oil and a sufficient amount of a stabilizing combination of a xanthan gum binder at least one betaine , surfactant and ahumectant comprising glycerin or glycerin and sorbitol in an amount sufficient to render the dentifrice formulation stable to degradation and resistant to syneresis and phase separation.
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 19, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 19, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 19, 2024.
- 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.