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Expired Canadian patentCanada

Cc-1065 analogs

CA 2078118 C · Owner: Kelly, Robert C. · Inventors: Mitchell, Mark A.; Kelly, Robert C.; Aristoff, Paul A.

CIPO record

Overview

Drawings and full text

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

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Abstract From the Canadian patent

This invention provides some new synthetically obtained compounds of formula I and II, (see formula I and II), which are useful as chemical intermediates. Representative formula I or II compounds have also, been shown to possess useful ranges of antitumor activity in standard laboratory anima) tests. In addition, the compounds of formula I or II can be linked to monoclonal antibodies, either directly or via known linking group as a means of selectively , delivering the CC-1065 analogs (Compounds of Formula I and II) to those target cells expressing the target antigen and, thus selectively eliminating those diseased cells from the animal or human. Further, the, compounds of formula I …

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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 April 24, 1991 and granted November 16, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 24, 2011.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 24, 2013.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledApril 24, 1991
GrantedNovember 16, 1999
Term endedApril 24, 2011
Patent numberCA 2078118 C
Classification (IPC)C07D487/04 +2 more

Timeline

Timeline From CIPO dates

1992199419961998200020022004200620082010Application filedApril 24, 1991Patent grantedNov 16, 1999Term endedApril 24, 2011

Sources & verification

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