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Expired Canadian patentCanada

Composition and method for controlling wild oat

CA 1069330 A · Owner: Shell Canada Limited · Inventors: Sampson, Alan J.

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

A herbicidal composition for the control of wild oat comprising:, (a) methyl N-benzoyl-N-(3-chloro-4-fluorophenyl)- 2-aminopropionate;, (b) isopropyl N-benzoyl-N-(3-chloro-4-fluorophenyl)- 2-aminopropionate; and, (c) a carrier or a surface-active agent or both a carrier and a surface-active agent.

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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 January 8, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 8, 1997.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Filed—
GrantedJanuary 8, 1980
Term endedJanuary 8, 1997
Patent numberCA 1069330 A
Classification (IPC)A01N25/00

Timeline

Timeline From CIPO dates

198119831985198719891991199319951997Patent grantedJan 8, 1980Term endedJan 8, 1997

Sources & verification

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