Liquid deodorant compositions
CA 2113633 C · Owner: The Procter & Gamble Company · Inventors: Meyer, Gerard Bernard; Listro, Joseph Anthony
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Disclosed are liquid deodorant compositions characterized by the presence of water and zinc phenolsulfonate at a weight ratio of at least about 1:3, most preferably about 3:1; most preferably 3:1; low levels of irritation causing polyhydric alcohols; relatively low monohydric alcohol levels; and the presence of nonionic emulsifiers. Also disclosed is a method for treating or preventing human malodor.
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 June 26, 1992 and granted January 28, 1997. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 26, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 26, 2014.
- 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.