Patent Yard Sign in
Expired Canadian patentCanada

Antiperspirant cream compositions comprising select triglyceride gellants

CA 2237587 C · Owner: Putman, Christine Marie · Inventors: Swaile, David Frederick; Bretzler, Eric John (Deceased); Putman, Christine Marie

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

Open the CIPO record

Abstract From the Canadian patent

Disclosed are antiperspirant cream compositions which have a penetration force value of from about 20 gram.force to about 500 gram.force and comprise (a) , from about 20 % to about 80 % by weight of a volatile silicone material; (b) from about 5 % to about 35 % of a particulate antiperspirant active; and (c) from about 0.1 % to about 20 % by weight of a gellant material comprising glyceryl tribehenate and other triglycerides wherein at least about 75 % of the esterified fatty acid moieties of said other triglycerides have from about 18 to about 36 carbon atoms, and the molar ratio of glyceryl tribehenate to said other triglycerides is from about 20:1 to about 1:1. The compositions …

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 November 14, 1996 and granted May 15, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 14, 2016.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 14, 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.
FiledNovember 14, 1996
GrantedMay 15, 2001
Term endedNovember 14, 2016
Patent numberCA 2237587 C
Classification (IPC)A61K8/37 +2 more

Timeline

Timeline From CIPO dates

1997199920012003200520072009201120132015Application filedNov 14, 1996Patent grantedMay 15, 2001Term endedNov 14, 2016

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.