Non-irritating dentifrice
CA 1195619 A · Owner: Colgate-Palmolive Company · Inventors: Eigen, Edward; Tavss, Edward A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A dentifrice composition containing an anionic surfactant and a, minor amount of a water soluble positively charged protein hydrolysate having an isoionic point above 7, and a Bloom gel value of zero selected from the, group consisting of a protein hydrolysate fraction containing high concentrations of basic amino acids or a quaternary derivative of a protein hydrolysate, which counters the irritation to the oral tissue and reduces the bitterness caused by said anionic surfactant without reducing its foaming, and cleansing properties.
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
- Granted October 22, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 22, 2002.
- 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.