Benzimidazole derivates: preparation and pharmaceutical applications
CA 2539766 C · Owner: Chen, Dizhong · Inventors: Sun, Eric T.; Song, Hong Yan; Chen, Dizhong
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to hydroxamate compounds which are inhibitors of histone deacetylase. More particularly the present invention relates to , benzimidazole containing compounds and methods for their preparation. These compounds may be useful as medicaments for the treatment of proliferative disorders as well as other diseases involving relating to or associated with , dysregulation of histone deacetylase (HDAC).
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 September 21, 2004 and granted July 2, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 21, 2024.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 21, 2026.
- 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.