Substituted vinylurea derivatives and medicine containing the same
CA 2211945 A1 · Owner: Naito, Hiroyuki · Inventors: Tachibana, Koichi; Naito, Hiroyuki; Hirota, Hiroyuki
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Disclosed herein are substituted vinylurea derivatives represented by the following general formula (1):, (1), wherein R1 and R3 are independently a phenyl group which may be substituted, R2 is a phenyl group which may be substituted, or a cycloalkyl group, and wave lines mean that the bonding state may be either E or Z with the, proviso that the cases where R1 R2 and R3 are, unsubstituted phenyl groups and where R1 and R2 are, unsubstituted phenyl groups and R3 is a 4-ethoxyphenyl group are excluded, or salt thereof, and medicines comprising such a derivative as an active ingredient as well as a method of preventing and treating arteriosclerosis with such a medicine. The derivatives or …
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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 July 29, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 29, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 29, 2019.
- 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.