Acat inhibitors
CA 2030105 A1 · Owner: Roark, William H. · Inventors: Roark, William H.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Novel compounds having acyl-coenzyme A: cholesterol acyltransferase (ACAT) inhibitory activity rendering them useful in controlling blood cholesterol levels of the formula, wherein Ar is phenyl or 1- or 2-naphthyl each of, which may be substituted or unsubstituted; m and n are zero, one, or two; R3 and R4 are hydrogen or an alkyl group which may be substituted on the terminal carbon with hydroxy or an amine group, or R3 is hydrogen and R4 is the group -NHR10 wherein R10 is hydrogen -C(=O)-alkyl C1-4, -C(=O)-O-t-C4H9, or -C(=O)OCH2C6H5; and R1 and R2 are hydrogen or an aliphatic a, substituted aliphatic, a substituted alicyclicaliphatic group, a heteroaliphatic group or NR1R2 taken together …
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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 15, 1990. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 15, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 15, 2012.
- 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.