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Expired Canadian patentCanada

Iodoethyl esters and process for the control of plant metabolism

CA 1050564 A · Owner: Ciba-Geigy Ag · Inventors: Rohr, Otto

CIPO record

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Abstract From the Canadian patent

Iodoethyl esters of aromatic carboxylic acids are useful ingredients to influence plant metabolism. They may be used preferably for regulating fruit abscission. The esters disclosed in this invention correspond to the formula, wherein R1 is hydrogen lower alkyl, lower alkoxy, lower halogenalkyl nitro, halogen, CH3COO-, CF3COO-, benzoyl or m-chlorbenzyl R2 is hydrogen, lower, alkyl, lower alkoxy or halogen; R3 is hydrogen or lower alkoxy; A is -CH2- -CH=CH- or -OCH2-; m is 0 or 1.

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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 13, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 13, 1996.
  • 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—
GrantedMarch 13, 1979
Term endedMarch 13, 1996
Patent numberCA 1050564 A
Classification (IPC)C07C67/00 +2 more

Timeline

Timeline From CIPO dates

198019821984198619881990199219941996Patent grantedMarch 13, 1979Term endedMarch 13, 1996

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