Low irritation cleansing bar
CA 2193469 C · Owner: S. C. Johnson & Son, Inc. · Inventors: Leifheit, David H.; Villars, William A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A cleansing bar includes (a) from about 20 % to about 35 % by weight of, all ingredients in the cleansing bar a synthetic detergent, sodium cocoyl, isethionate (b) from about 6 % to about 11 %, by weight of all ingredients in the cleansing bar, cetyl alcohol, wherein a mole to mole ratio of (a) to (b) is at least about 2.2:1, (c) at least about 30 %, by weight of all ingredients in the cleansing bar, processed grain, (d) a buffer for adjusting the pH of the cleansing bar to be in a range from about 4.0 to about 5.5, and (e) from about 9 % to about 20 % by, weight of all ingredients in the cleansing bar water. Also disclosed are methods of, making such a cleansing bar.
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 19, 1996 and granted March 7, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 19, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 19, 2018.
- 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.