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Expired Canadian patentCanada

Fungicidal compositions containing dithianon

CA 1314809 C · Owner: Heupt, Wilfried · Inventors: Albert, Guido; Rohrbach, Kurt-Ulrich; Itzel, Hanshelmut

CIPO record

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Abstract From the Canadian patent

Fungicidal composition of dithianon and of oligomeric or polymeric condensation products of naphthalene sulfonic acids and formaldehyde or salts thereof and/or of fungicides of the F1 and/or F2 type show improved fungicidal effectiveness in comparison with the individual active ingredients.

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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 March 23, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 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.
FiledJanuary 26, 1987
GrantedMarch 23, 1993
Term endedMarch 23, 2010
Patent numberCA 1314809 C
Classification (IPC)A01N45/02 +2 more

Timeline

Timeline From CIPO dates

19881991199419972000200320062009Application filedJan 26, 1987Patent grantedMarch 23, 1993Term endedMarch 23, 2010

Sources & verification

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