Shampoo containing a cationic polymer and particles
CA 2459919 A1 · Owner: The Procter & Gamble Company · Inventors: Midha, Sanjeev; Hofrichter, Brian David
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The compositions of the present invention relate to improved shampoo compositions having from about from about 5 to about 50 weight percent of a detersive surfactant, at least about 0.1 weight percent of particles having a mean particle size of less than about 300 microns at least about 0.05 weight , percent of a cationic polymer having a molecular weight of from about 10,000 to about 10,000,000 and a charge density from about 0.9 meq/gm to about 7.0 meq/gm, and at least about 20.0 weight percent of an aqueous carrier.
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 October 3, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 3, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 3, 2024.
- 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.