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Expired Canadian patentCanada

Process for production of methyl 2- tetradecylglycidate

CA 1196000 A · Owner: Mcneilab, Inc. · Inventors: Maryanoff, Cynthia A.

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

An improved process for producing the hypoglycemic compound, methyl 2-tetradecylglycidate by reacting methyl, .alpha.-chloropalmitate with lithium methoxide in the presence of formaldehyde in a dipolar aprotic solvent such as DMF or DMSO.

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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 October 29, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 29, 2002.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledDecember 15, 1983
GrantedOctober 29, 1985
Term endedOctober 29, 2002
Patent numberCA 1196000 A
Classification (IPC)C07D303/48

Timeline

Timeline From CIPO dates

1984198619881990199219941996199820002002Application filedDec 15, 1983Patent grantedOct 29, 1985Term endedOct 29, 2002

Sources & verification

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