Highly water soluble bis-naphthalimides useful as anticancer agents
CA 2125142 A1 · Owner: Du Pont Pharmaceuticals Company · Inventors: Sun, Jung-Hui
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention relates to bis-naphthalimides including, 2,2'-1,2-ethanediylbis(methylimino-2,1-ethanediyl)-bis5-nitro-1H-benzdei_ soquinoline-1,3(2H)-dione, 2-2-N-methyl-N-2-2-(5-nitro-1,3-dioxo-1H-benzdeisoquinoline-2(3H)-yl)et_ hylaminoethylaminoethyl-5-nitro-1H-benzdeisoquinoline-1,3(2H)-dione 2,2'-1,2-ethanediylbis(imino-2,1-ethanediyl)-bis5-nitro-1H-benzdeisoquin_ oline-1,3(2H)-dione, pharmaceutical compositions containing them, and methods of using them to treat solid tumor carcinomas 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 December 11, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 11, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 11, 2014.
- 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.