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Expired Canadian patentCanada

Erbb3 antibodies

CA 2589421 C · Owner: Akita, Robert · Inventors: Akita, Robert; Sliwkowski, Mark

CIPO record

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Abstract From the Canadian patent

Antibodies are disclosed which bind to ErbB3 protein and further possess any one or more of the following properties: an ability to reduce heregulin-induced formation of an ErbB2-ErbB3 protein complex in a cell which expresses ErbB2 and ErbB3; the ability to increase the binding affinity of heregulin for ErbB3 protein; and the characteristic of reducing heregulin-induced ErbB2 activation in a cell which expresses ErbB2 and ErbB3.

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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 March 7, 1997 and granted December 18, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 7, 2017.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 7, 2019.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMarch 7, 1997
GrantedDecember 18, 2012
Term endedMarch 7, 2017
Patent numberCA 2589421 C
Classification (IPC)C07K16/40 +2 more

Timeline

Timeline From CIPO dates

1998200020022004200620082010201220142016Application filedMarch 7, 1997Patent grantedDec 18, 2012Term endedMarch 7, 2017

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