Fungicides
CA 1297481 C · Owner: Godfrey, Christopher R.A. · Inventors: Godfrey, Christopher R.A.; Defraine, Paul; Anthony, Vivienne M.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
pp. 33840, FUNGICIDES, ABSTRACT, Compounds of formula : and stereoisomers thereof, wherein W is an unsubstituted pyridyl or unsubstituted pyrimidinyl group linked to A by any one of its ring carbon atoms; A is either an oxygen atom or S(O)n, wherein n is 0, 1 or 2; X Y and Z, which, are the same or different are hydrogen or halogen atoms, or hydroxy optionally substituted alkyl, optionally substituted alkenyl, optionally substituted alkynyl optionally substituted alkoxy, optionally substituted aryl, optionally substituted aryloxy, optionally substituted aralkyl, optionally substituted arylalkoxy optionally substituted acyloxy, optionally substituted amino, optionally substituted acylamino …
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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 17, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 17, 2009.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.