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Expired Canadian patentCanada

Herbicidal mixtures based on 3-phenyluracils

CA 2518042 C · Owner: Basf Aktiengesellschaft · Inventors: Landes, Andreas; Witschel, Matthias; Zagar, Cyrill

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Abstract From the Canadian patent

A herbicidal mixture comprising 3-Phenyluracils of the formula (I) in which the variables R1 - R7 are as defined below: R1 is methyl or NH2; R2 is haloalkyl; R3 is hydrogen or halogen; R4 is halogen or cyano; R5 is hydrogen cyano, alkyl, alkoxy, alkoxyalkyl, cyclo-alkyl alkenyl, alkynyl or optionally , substituted benzyl; R6 R7 are hydrogen, optionally substituted alkyl alkoxy, alkenyl, alkynyl, cycloalkyl, cycloalkenyl phenyl or benzyl; or R6, R7 , together with the nitrogen atom form a 3- to 7-membered saturated or unsaturated optionally substituted hetero- cycle including their , agriculturally acceptable salts; and at least one further herbicide B; and optionally at least one …

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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 5, 2004 and granted May 22, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 5, 2024.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 5, 2026.
  • 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 5, 2004
GrantedMay 22, 2012
Term endedMarch 5, 2024
Patent numberCA 2518042 C
Classification (IPC)A01N43/54

Timeline

Timeline From CIPO dates

2005200720092011201320152017201920212023Application filedMarch 5, 2004Patent grantedMay 22, 2012Term endedMarch 5, 2024

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