Anti-acne composition
CA 1319111 C · Owner: Richardson-Vicks, Inc. · Inventors: Doughty, Darrell G.; Kowcz, Alexandra
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of the Invention A hydroalcoholic solution with pH 2-3.5 of salicylic acid and an anionic taurate surfactant selected from the group consisting of sodium methyl cocoyl taurate and sodium methyl oleoyl taurate for the treatment of acne, is cosmetically acceptable and results, in the deposition of substantial amounts of salicylic acid into the stratum corneum with minimal penetration through the skin.
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 June 15, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 15, 2010.
- 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.