Clear antiperspirant stick containing dibenzylidene alditol
CA 2214577 C · Owner: The Dial Corporation · Inventors: Sane, Jayant N.; Vu, Tuan M.; Iovanni, Carl F.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A clear gel cosmetic stick is disclosed which includes a liquid vehicle an , antiperspirant salt dissolved in the liquid vehicle and a dibenzylidene , alditol, and is further characterized in that said stick includes a hydroxyalkyl cellulose or a chelating agent or both a hydroxyalkyl cellulose and a chelating agent. The cosmetic stick comprises in percent by weight about 70 % to about 95 %, preferably 75 % to 92 % of a liquid vehicle, about 1 % to , about 22 % preferably 3 % to 15 %, of an antiperspirant salt dissolved in said vehicle, about 0.5 % to about 3 % preferably 0.5 % to 1.5 %, of a , dibenzylidene alditol about 0.1 % to about 0.5 %, preferably 0.2 % to 0.4 % of a hydroxyalkyl …
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 February 29, 1996 and granted September 25, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 29, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 1, 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.