Method of tumor treatment
CA 2132578 C · Owner: Brown, J. Martin · Inventors: Brown, J. Martin
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Disclosed are pharmaceutical compositions for increasing toxicity of chemotherapy agents for treating mammalian cancer tumors, preferably solid tumors, comprising an effective amount of a 1,2,4-benzotriazine oxide compound of Formula I: (See Fig. I), wherein X is H, (substituted)hydrocarbyl halogen, OH, alkoxy, or (substituted)amino n is 0 or 1, and Y1 and Y2 are each H, nitro halogen, (substituted)hydrocarbyl, etc. or pharmacologically acceptable salts thereof. Also disclosed are kits for treatment of such tumors which comprise a chemotherapy agent and a cytotoxicity-enhancing amount of a 1,2,4-benzotriazine oxide compound of Formula I.
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, 1994 and granted October 13, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 21, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 21, 2016.
- 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.