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Expired Canadian patentCanada

Fungicide

CA 1318248 C · Owner: Sampson, Michael J. · Inventors: Sampson, Michael J.

CIPO record

Overview

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

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Abstract From the Canadian patent

FUNGICIDES Fungi are killed on plant material, both growing and harvested by applying to the plant material a non-toxic water-soluble fungicidal compound or compounds that is/are a metabisulphite propionate and/or, sorbate. The solutions used vary widely in concentration depending on, whether the material is harvested or application to growing plants is by aerial or CDA spraying of any crop, ground spraying of an arable crop or ground spraying of crop-bearing trees. Preferably the fungicidal compound(s) is/are applied in conjunction with a coating agent and/or 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 May 25, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 25, 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.
FiledApril 12, 1989
GrantedMay 25, 1993
Term endedMay 25, 2010
Patent numberCA 1318248 C
Classification (IPC)A01N37/02 +2 more

Timeline

Timeline From CIPO dates

1990199319961999200220052008Application filedApril 12, 1989Patent grantedMay 25, 1993Term endedMay 25, 2010

Sources & verification

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