Personal care compositions containing thermoplastic elastomeric graft copolymers
CA 2193366 C · Owner: Torgerson, Peter Marte · Inventors: Torgerson, Peter Marte; Midha, Sanjeev
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to hair care compositions containing nonpolar graft thermoplastic elastomeric copolymers and a water insoluble volatile solvent for the copolymer. This invention relates to styling products such as sprays and mousses, to hair conditioning products such as rinses and leave-on conditioners, and to shampoo products useful for both cleansing and conditioning the hair.
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 31, 1995 and granted December 19, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 31, 2015.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 31, 2017.
- 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.