Patent Yard Sign in
Expired Canadian patentCanada

Combination chemotherapy

CA 2123321 C · Owner: Glaxosmithkline Llc · Inventors: Johnson, Randall Keith

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

Open the CIPO record

Abstract From the Canadian patent

A pharmaceutical composition comprising a compound of the camptothecin analog class and a platinum coordination, compound and a pharmaceutically acceptable carrier or diluent; a method of inhibiting the growth of tumor cells in a human afflicted therewith which comprises administering to such human an effective tumor cell growth inhibiting amount of such pharmaceutical composition; and a method of inhibiting the growth of tumor cells in a human afflicted therewith which comprises administering to such human an effective tumor cell growth inhibiting amount of the combination of a compound of the camptothecin analog class and a platinum coordination compound.

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 November 13, 1992 and granted September 30, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 13, 2012.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 13, 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.
FiledNovember 13, 1992
GrantedSeptember 30, 2003
Term endedNovember 13, 2012
Patent numberCA 2123321 C
Classification (IPC)A61K33/24 +2 more

Timeline

Timeline From CIPO dates

1993199519971999200120032005200720092011Application filedNov 13, 1992Patent grantedSep 30, 2003Term endedNov 13, 2012

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.