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Expired Canadian patentCanada

Cyclopropyl squalene derivatives and their use as inhibitors of cholesterol synthesis

CA 2078871 C · Owner: Bey, Philippe · Inventors: Angelastro, Michael R.; Peet, Norton P.; Bey, Philippe

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

The present invention relates to a group of compounds which are novel squalene derivatives containing the cyclopropyloxy functionality and which act to inhibit the=_ synthesis of cholesterol in mammals and in fungi. The compounds have the formula, wherein Z is a radical selected from the group consisting of the radicals represented by the Formula A, B C and D as below:

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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 March 19, 1991 and granted June 26, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 19, 2011.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 19, 2013.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMarch 19, 1991
GrantedJune 26, 2001
Term endedMarch 19, 2011
Patent numberCA 2078871 C
Classification (IPC)C07C43/18 +1 more

Timeline

Timeline From CIPO dates

1992199419961998200020022004200620082010Application filedMarch 19, 1991Patent grantedJune 26, 2001Term endedMarch 19, 2011

Sources & verification

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