Shampoo system
CA 2047104 A1 · Owner: Mcgee, Thomas · Inventors: Cordery, Caroline S.; Stanley, Susan J.; Mcgee, Thomas
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A shampoo system comprises: (A) a first pack containing a base shampoo composition comprising a surfactant chosen from anionic nonionic, and amphoteric surfactants, and mixtures thereof and, a cationic conditioning polymer; and (B) a second pack containing a shampoo additive composition comprising particles of a benefit agent which imparts a benefit to the hair, the particles having an average size of less than 2µm wherein the, first and second packs are adapted to be mixed together before use.
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 July 16, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 16, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 16, 2013.
- 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.