Hair styling agents and compositions containing hydrophobic hair styling polymers
CA 2110054 C · Owner: The Procter & Gamble Company · Inventors: Leet Setser, Julia E.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Hair styling agents, and aqueous base hair care compositions containing them wherein the hair styling agent comprises a water-insoluble hair styling polymer with a volatile water-insoluble diluent. , The water-insoluble hair styling polymer consists essentially of hydrophobic monomer units. These compositions are particularly useful for application to the hair in the form of a rinse-off hair care composition comprising the hair styling agent and an aqueous carrier providing a gel-like rheology.
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 26, 1992 and granted August 7, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 26, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 26, 2014.
- 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.