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Expired Canadian patentCanada

Pyrazole derivatives

CA 1077048 A · Owner: Commonwealth Scientific And Industrial Research Organization · Inventors: Huppatz, John L.

CIPO record

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Abstract From the Canadian patent

Fungicidal compositions comprising as an active ingredient a compound of the general formula I wherein either R1 or R2 is the group -?NHR5 in which X is an oxygen atom or a sulphur atom and R5 is straight chain alkyl group of 1 to 8 carbon atoms, branched chain alkyl group of 1 to 8 carbon atoms, cyclic alkyl group of 3 to 8 carbon atoms alkenyl group, alkynyl group, hydroxyalkyl group phenyl group, or a mono-, di- or tri- substituted phenyl group with substituents, which may be the same or different chosen from, the group consisting hydrogen alkyl alkenyl, alkynyl, hydroxy-, alkyl, alkoxy phenyl, halogen, trifluoromethyl, thiocyanate nitro, cyano, amino, carboxy, alkoxycarbonyl carbamoyl, …

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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 6, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 6, 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—
GrantedMay 6, 1980
Term endedMay 6, 1997
Patent numberCA 1077048 A
Classification (IPC)C07D231/14 +2 more

Timeline

Timeline From CIPO dates

198119831985198719891991199319951997Patent grantedMay 6, 1980Term endedMay 6, 1997

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