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Expired Canadian patentCanada

Potentiation of epizootic viral infections of insects

CA 2089619 C · Owner: Basf Aktiengesellschaft · Inventors: Black, Bruce Christian

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

The present invention describes a method for inducing epizootic viral infections in insects which consists essentially of potentiating the latent virulence of indigenous insect viruses by contacting the insect with or, applying to its habitat or food supply a potentiating, amount of a stilbene compound. This invention further describes a method for protecting agronomic craps trees, shrubs, orchards and ornamentals from attack by an inset which employs the application of a stilbene compound to a plant.

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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 16, 1993 and granted May 30, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 16, 2013.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 16, 2015.
  • 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 16, 1993
GrantedMay 30, 2000
Term endedFebruary 16, 2013
Patent numberCA 2089619 C
Classification (IPC)A01N47/30 +2 more

Timeline

Timeline From CIPO dates

1994199619982000200220042006200820102012Application filedFeb 16, 1993Patent grantedMay 30, 2000Term endedFeb 16, 2013

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