Method of lowering serum cholesterol levels with 2,6-di-alkyl-4-silyl-phenols
CA 2177968 C · Owner: Parker, Roger A. · Inventors: Mao, Simon J. T.; Parker, Roger A.; Yates, Mark T.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method of lowering plasma cholesterol level in a patient with hyercholesterolemia, by administration of a compound of formula (I) wherein: R1, R2 R3 and, R4 are each independently a C1-C6 alkyl group; Z is a thio, oxy or methylene group; A is C1-C4 alkylene group; and R5 is a C1-C6 alkyl or -(CH2)n-(Ar) wherein n is an integer 0, 1, 2 or 3; and Ar is phenyl or napthyl unsubsubstited or substituted with one to three substituents selected from the group consisting of hydroxy methoxy, ethoxy, chloro, fluoro or C1-C6 alkyl.
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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 November 3, 1994 and granted March 28, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 3, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 3, 2016.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.