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Expired Canadian patentCanada

Method for control of ground shoots of trunk vegetation through applying thereupon a protoporphyrinogen oxidase enzyme-inhibiting herbicide

CA 2555518 C · Owner: Sarazin, Michel · Inventors: Sarazin, Michel; Leblanc, Jean

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

Protoprophyrinogen oxidase enzyme-inhibiting herbicides are useful in a method for controlling unwanted ground shoots of vines and other trunk vegetation. Of particular interest is the use of carfentrazone ethyl and certain metabolites thereof for control of unwanted ground shoots of vines and other trunk vegetation.

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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 February 9, 2005 and granted April 10, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 9, 2025.
  • Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledFebruary 9, 2005
GrantedApril 10, 2012
Term endedFebruary 9, 2025
Patent numberCA 2555518 C
Classification (IPC)A01N43/65 +1 more

Timeline

Timeline From CIPO dates

2006200820102012201420162018202020222024Application filedFeb 9, 2005Patent grantedApril 10, 2012Term endedFeb 9, 2025

Sources & verification

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