Henna product
CA 2431744 C · Owner: Cosmetic Warriors · Inventors: Ambrosen, Helen; Constantine, Margaret; Constantine, Mark
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A product comprising as its main components henna and cocoa butter with the product having a solid form. Also a method of forming a solid form product comprising the step of mixing henna and cocoa butter to form a paste and allowing the paste to harden. Additives may be provided such as a surfactant, a conditioning agent a fragrance, a herb, a fruit extract, a vegetable a , natural way or butter, a synthetic wax a humectant, glycerine, a vegetable , oil. Preferably the product is formed of 40 % to 90 % henna by weight and 10 % to 60 % cocoa butter by weight. More preferably the product is formed of 60 % to 80 % henna by weight and 20 % to 40 % cocoa butter by weight. Most preferably …
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 December 13, 2001 and granted February 1, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 13, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 13, 2023.
- 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.