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Expired Canadian patentCanada

.alpha.-CYCLOPROPYL-.alpha.-PHENYL-(6-PHENOXY-2-PYRIDINYL)- METHYL ACETATE COMPOUNDS

CA 1233820 A · Owner: Novartis Pharmaceuticals Canada Inc./Novartis Pharma Canada Inc. · Inventors: Kohler, Boris; Ackermann, Peter; Gsell, Laurenz

CIPO record

Overview

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Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

alpha.-Cyclopropyl-.alpha.-Phenyl-(6-Phenxy-2-Pyridinyl)-Methyl Acetate Compounds, Abstract, .alpha.-Cyclopropyl-.alpha.-phenylacetate and salts thereof corresponding to the formula, (I), wherein R1 is hydrogen, methyl, cyano or ethinyl X1 is hydrogen, halogen, C1-C5-alkyl, C1-C5-haloalkyl or C1-C5 -alkoxy, X2 is hydrogen, halogen or C1-C5-alkyl or together with, X1 is methylenedioxy and, X3 and X4 are each hydrogen or halogen. Processes for producing these .alpha.-cyclopropyl-.alpha.-phenylacetates and their use for controlling pests are described.

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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 8, 1988. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 8, 2005.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledNovember 16, 1983
GrantedMarch 8, 1988
Term endedMarch 8, 2005
Patent numberCA 1233820 A
Classification (IPC)C07D213/64 +2 more

Timeline

Timeline From CIPO dates

19841987199019931996199920022005Application filedNov 16, 1983Patent grantedMarch 8, 1988Term endedMarch 8, 2005

Sources & verification

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