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Expired Canadian patentCanada

Composition that prevents damage to trees by harmful insects and a prevention method thereof

CA 2558962 C · Owner: Watanabe, Kunitoshi · Inventors: Watanabe, Kunitoshi; Shinya, Suguru; Suzuki, Toshio

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Abstract From the Canadian patent

The present invention relates to a composition comprising a neonicotinoid-based compound having a high degree of insecticidal activity a , surfactant, and an organic solvent which is capable of demonstrating stable effects and in which the types and amounts of surfactant and organic solvent are adjusted so as to prevent chemical damage in numerous types of trees. In addition, the present invention relates to a method for preventing damage to trees by harmful insects of numerous types of trees by injecting this composition into a tree trunk and allowing the chemical to circulate within the tree body.

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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 10, 2005 and granted May 5, 2015. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 10, 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.
FiledMarch 10, 2005
GrantedMay 5, 2015
Term endedMarch 10, 2025
Patent numberCA 2558962 C
Classification (IPC)A01N51/00 +2 more

Timeline

Timeline From CIPO dates

2006200820102012201420162018202020222024Application filedMarch 10, 2005Patent grantedMay 5, 2015Term endedMarch 10, 2025

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