3-substituted pyridines and fungicides containing them
CA 1331385 C · Owner: Buschmann, Ernst · Inventors: Ammermann, Eberhard; Sproesser, Linhard; Buschmann, Ernst
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
3-substituted pyridines of the formula (I), where, R1 is hydrogen, alkyl, alkenyl alkynyl, acyl, haloacyl, benzoyl or, benzyl; R2 is hydrogen, alkyl, cycloalkyl, cycloalkylalkyl alkylcycloalkyl, arylalkyl or aryloxyalkyl R3 is the radical, or , R4 to R8 being identical or different and each denoting hydrogen alkyl, alkoxy, haloalkyl, alkoxycarbonyl dialkylamino, phenyl, hydroxy or, halogen and R4 and R5, or R6 and R7 together denote -CH=CH-CH=CHn is 0, or 1, salts thereof which are tolerated by plants and fungicides contain-, ing these compounds.
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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 August 9, 1994. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 9, 2011.
- 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.