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Expired Canadian patentCanada

Treatment of seeds

CA 1280620 C · Owner: Powell, Keith A. · Inventors: Lethbridge, Gordon; Powell, Keith A.

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

Method and composition for coating seeds with microorganisms wherein the coating composition comprises bran as a carrier for the microorganisms and/or gum ghatti is used to cause the composition to adhere to the seed and, seeds coated by the method.

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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

  • Granted February 26, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 26, 2008.
  • 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 14, 1986
GrantedFebruary 26, 1991
Term endedFebruary 26, 2008
Patent numberCA 1280620 C
Classification (IPC)A01N63/02 +2 more

Timeline

Timeline From CIPO dates

19871990199319961999200220052008Application filedFeb 14, 1986Patent grantedFeb 26, 1991Term endedFeb 26, 2008

Sources & verification

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