Expired Canadian patentCanada
Cosmetic composition comprising fixative polymer and amphoteric starch
CA 2201958 C · Owner: L'Oreal · Inventors: Dupuis, Christine
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention consists of a cosmetic composition for treating keratin fibres particularly hair. It comprises at least one fixative polymer and at least one amphoteric starch together with a process for treating keratin fibres with this 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 April 4, 1997 and granted December 17, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 4, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 4, 2019.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledApril 4, 1997
GrantedDecember 17, 2002
Term endedApril 4, 2017
Patent numberCA 2201958 C
Classification (IPC)A61K8/73 +2 more
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.