Dibenzocchromen-6-one derivatives as anti-cancer agents
CA 2438713 C · Owner: Nanodesign Inc. · Inventors: Whelan, John; Mercure, Julie; Redden, Peter
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Molecules demonstrating anti-proliferative effects against epithelial cancer cell lines and endothelial cells and methods of synthesis are disclosed. The molecules are intended for use in therapeutic preparations for the treatment of cancer through either anti-angiogenesis or other anti-cancer mechanisms. The compounds specified are 6H-dibenzob,dpyran-6-one derivatives and have been shown to be antiproliferative against human endothelial cells.
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 21, 2002 and granted April 26, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 21, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 21, 2024.
- 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.