Arylcycloalkyl derivatives their production and their use
CA 2087414 C · Owner: Blumbach, Juergen · Inventors: Lal, Bansi; Vasumathy, Rangarajan; Blumbach, Juergen
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to a novel compound of formula I wherein, (See formula 1), the substituents R1 - R4 and "a" have the given meaning show herein. In addition, the invention relates to the production of pharmaceutical compositions that can be together with pharmaceutical auxiliary and/or excipients, brought into a suitable administration form. Furthermore the, invention relates to the use of the compounds for the treatment and prevention of inflammatory conditions.
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 January 15, 1993 and granted April 16, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 15, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 15, 2015.
- 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.