Hair care compositions
CA 2337520 A1 · Owner: Mcmeekin, Anthony · Inventors: Mckelvey, Graham Neil; Mcmeekin, Anthony; Young, Wendy Victoria Jane
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
According to the present invention there is provided a hair care composition comprising: (a) polysiloxane resin, wherein at least one substituent group of the resin posssesses delocalised electrons; and (b) C1 to C6 aliphatic alcohol. The compositions of the present invention are easy to spread through the hair and provide good conditioning and shine benefits with reduced feelings of tackiness nad greasiness. In addition the present compositions , provide a refreshing feeling to the scalp.
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 March 26, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 26, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 26, 2021.
- 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.