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Expired Canadian patentCanada

Prodrugs of antihypercholesterolemic compounds

CA 1302425 C · Owner: Pitzenberger, Steven M. · Inventors: Baldwin, John J.; Pitzenberger, Steven M.; Halczenko, Wasyl

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

Prodrugs of 3-hydroxy-3-methylglutarylcoenzyme A (HMG-CoA) reductase inhibitors which are useful as antihypercholesterolemic agents and are represented by the following general structural formula (I):, (I), the amido ester moiety of which is in the L-configuration, and pharmaceutically acceptable salts thereof are disclosed.

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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 June 2, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 2, 2009.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledSeptember 1, 1987
GrantedJune 2, 1992
Term endedJune 2, 2009
Patent numberCA 1302425 C
Classification (IPC)C07C235/34 +2 more

Timeline

Timeline From CIPO dates

19881991199419972000200320062009Application filedSep 1, 1987Patent grantedJune 2, 1992Term endedJune 2, 2009

Sources & verification

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