Use of derivates of n-phenyl-3,4,5,6-tetrahydrophthalimide for the desiccation and abscission of plant organs
CA 2010827 C · Owner: Grossmann, Klaus · Inventors: Mulder, Christiaan E.G.; Grossmann, Klaus; Wuerzer, Bruno
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
62-, Abstract of the Disclosures Derivatives of N-phenyl-3,4,5,6-tetrahydrophthalimide of the general formulae I and/or II, where R is hydrogen, fluorine or chlorine A is hydrogen, C1-C4-cyanoalkyl or a group I-1 to I-11 where R1 to R15, Q, X and Z have the meanings stated in the description, R16 is hydrogen, C~-C4-alkyl C3- or C4-alkenyl or C3- or, C4-alkynyl or is benzyl which is unsubstituted or substituted by halogen or C1-C4-alkyl or is tetrahydrofur- -63-, furyl, dihydropyranylmethyl, dihydrothiopyranylmethyl tetrahydropyranylmethyl or tetrahydrothiopyranylmethyl E is oxygen or methylene, n is 0 or 1 and Y is oxygen, sulfur or CHR4, are used for the desiccation and abscission of plant …
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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
- Filed February 23, 1990 and granted April 25, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 23, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 23, 2012.
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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.