Shampoo compositions
CA 1328814 C · Owner: The Procter & Gamble Company · Inventors: Gummer, Christopher Lawrence
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Antidandruff shampoo compositions comprising a synthetic surfactant; a dispersed insoluble, non-volatile silicone; a long chain acyl derivative or amide oxide; a pyridinethione antidandruff agent; a hydroxypyridone and/or imidazolyl ketone antidandruff agent; and water. The compositions combine excellent hair conditioning effectiveness antidandruff efficacy and product stability.
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
- Granted April 26, 1994. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 26, 2011.
- 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.