Expired Canadian patentCanada
Treatment of non-small cell lung carcinoma
CA 2103707 C · Owner: Johnson, Randall Keith · Inventors: Johnson, Randall Keith
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method of treating non-small cell lung carcinoma in a human afflicted therewith which comprises administering to such human an effective amount of a compound of the water soluble camptothecin analog class.
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 7, 1992 and granted December 9, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 7, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 7, 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.
FiledFebruary 7, 1992
GrantedDecember 9, 2003
Term endedFebruary 7, 2012
Patent numberCA 2103707 C
Classification (IPC)A61K31/47 +2 more
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.