Silicones
CA 2483695 A1 · Owner: The Procter & Gamble Company · Inventors: Mcmeekin, Anthony; Godfrey, Simon Paul; Glenn, Robert Wayne
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In a first aspect, the present invention relates organomodified silicones having substituents comprising oxygen, such that the oxygen content of the substituents is from 1 % to 10 % of the weight of the functionalized silicone and the content of the silicone backbone is from 67 to 95 % by weight. In a further aspect, the invention relates to topical compositions comprising these organomodified silicones which deposit on a viariety of fibers especially , hair, of differing levels of damage. In a further aspect the invention , relates to a hair treatment kit comprsising the topical compositions.
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 22, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 22, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 22, 2025.
- 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.