Personal cleansing composition and method
CA 2378376 A1 · Owner: Alberto-Culver Company · Inventors: Schueller, Randy; Ghosh, Dipak K.; Murthy, Usha V.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An aqueous foam producing personal cleansing composition is disclosed. The composition, which is normally clear and is essentially free of any amides of diethanolamine, comprises a cloud point depressing agent comprising ammonium chloride. The composition of the present invention is characterized by a low cloud point temperature such that the risk of forming an undesirable precipitate in the composition is reduced. Also disclosed is a method of reducing the cloud point temperature in a normally clear aqueous personal cleansing composition which is essentially free of amides of diethanolamine. The method comprises adding ammonium chloride to the composition.
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 July 14, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 14, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 14, 2022.
- 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.