Novel intermediates and their use to prepare n,n'-bridged bisindolylmaleimides
CA 2237401 C · Owner: Eli Lilly And Company · Inventors: Faul, Margaret Mary; Winneroski, Leonard Larry Jr.; Krumrich, Christine Ann
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention provides compounds of formula (II). The invention further provides the use of this compound to prepare N,N'-bridged bisindolylmaleimides. Furthermore, the invention provides pharmaceutical formulations and the methods of use for inhibiting Protein Kinase C in mammals.
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 November 18, 1996 and granted October 21, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 18, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 18, 2018.
- 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.