Antiperspirant gel-solid stick compositions
CA 2275684 C · Owner: The Procter & Gamble Company · Inventors: Heinrich, James Merle; Guskey, Gerald John; Orr, Thomas Vincent
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Disclosed are anhydrous antiperspirant gel-solid sticks which comprise particulate antiperspirant active; a solid non-polymeric gellant that is substantially free of dibenzylidene alditol inorganic thickening agents, organic polymeric gellants n-acyl amino acid derivatives, or combinations thereof; an anhydrous liquid carrier containing polyalkylsiloxanes polyalkyarylsiloxanes, polyestersiloxanes polyethersiloxane copolymers, polyfluorosiloxanes polyaminosyloxanes, or combinations thereof. The composition has a visible residue index of from about 11 to about 30 L-value a product hardness of from about 500 to about 5,000 gram.force a rheology , profile defined by a ratio of an elastic …
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 18, 1997 and granted June 25, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 18, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 18, 2019.
- 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.