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Expired Canadian patentCanada

Process of suppressing odors employing deodorants containing esters of aliphatic hydroxycarboxylic acids

CA 1050892 A · Owner: Henkel Kommanditgesellschaft Auf Aktien (Henkel Kgaa) · Inventors: Osberghaus, Rainer; Reese, Gunter

CIPO record

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

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Abstract From the Canadian patent

A process of suppressing body odors comprising applying a substantially anhydrous cosmetic preparation for suppressing body odor containing as a deodorant an ester of an aliphatic mono- or di-hydroxycarboxylic acid or an aliphatic mono- or di-hydroxy-dicarboxylic acid having from 2 to 4 carbon atoms with an aliphatic alcohol having fro. 1 to 6 carbon atoms or an alicyclic alcohol having 5 to, 6 carbon atoms.

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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

  • Granted March 20, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 20, 1996.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Filed—
GrantedMarch 20, 1979
Term endedMarch 20, 1996
Patent numberCA 1050892 A
Classification (IPC)C07C69/22 +2 more

Timeline

Timeline From CIPO dates

198019821984198619881990199219941996Patent grantedMarch 20, 1979Term endedMarch 20, 1996

Sources & verification

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