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Expired Canadian patentCanada

Method of repelling mosquitoes and ticks using 2-undecanone, 2-tridecanone and/or mixtures thereof

CA 2441295 C · Owner: Roe, R. Michael · Inventors: Roe, R. Michael

CIPO record

Overview

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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 method of repelling an insect pest such as a tick mosquito or cockroach , comprises applying to a subject or substrate in an amount effect to repel the , insect pest a compound of Formula (I): wherein R is C4-C20 linear or branched alkyl. Particularly preferred compounds of Formula (I) are 2-tridecanone and 2undecanone.

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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

  • Filed March 14, 2002 and granted January 31, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 14, 2022.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 14, 2024.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMarch 14, 2002
GrantedJanuary 31, 2012
Term endedMarch 14, 2022
Patent numberCA 2441295 C
Classification (IPC)A01N35/02 +2 more

Timeline

Timeline From CIPO dates

2003200520072009201120132015201720192021Application filedMarch 14, 2002Patent grantedJan 31, 2012Term endedMarch 14, 2022

Sources & verification

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