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Expired Canadian patentCanada

Fungal herbicides

CA 1313834 C · Owner: Watson, Alan K. · Inventors: Ormeno-Nunez, Juan; Reeleder, Richard D.; Watson, Alan K.

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

C-I-L 718, ABSTRACT, "Fungal Herbicides" A method for the biological control of field bindweed using a fungus Phomopsis convolvulus Ormeno. This fungus is a newly described pathogen, which produces foliar lesions in the field bindweed, and is the first fungal pathogen that can control field bindweed present among agricultural crops.

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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 23, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 23, 2010.
  • 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 3, 1987
GrantedFebruary 23, 1993
Term endedFebruary 23, 2010
Patent numberCA 1313834 C
Classification (IPC)C12N1/14 +1 more

Timeline

Timeline From CIPO dates

19881991199419972000200320062009Application filedFeb 3, 1987Patent grantedFeb 23, 1993Term endedFeb 23, 2010

Sources & verification

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