Use of substituted 4-biarylbutyric and 5-biarylpentanoic acid derivatives for the treatment of cerebral diseases
CA 2333955 A1 · Owner: Riedl, Bernd · Inventors: Haning, Helmut; Henning, Rolf; Keldenich, Jorg
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Use of subtsituted 4-Biarylbutyric and 5-Biarylpentanoic Acid Derivatives for the Treatment of Cerebral Diseases, pharmaceutical compositions containing them, and a process for using them. The compounds of the invention have the generalized formula (I): (T)xA-B-D-E-CO2H wherein A is an aryl or heteroaryl , rings; B is an aryl or heteroaryl ring or a bond; each T is a substituent group; x is 0,1, or 2; the group D represents (a) or (b), the group E , represents a two or three carbon chain bearing one to three substituent groups which are independent or are involved in ring formation possible structures , being shown in the text and claims; and each of the substituents on E is an …
Read the whole patent
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 February 14, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 14, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 14, 2022.
- 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.