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Expired Canadian patentCanada

Method of making monoclonal antibodies using polymorphic transgenic animals

CA 2308623 C · Owner: The New York Blood Center, Inc. · Inventors: Reid, Marion E.

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Abstract From the Canadian patent

The invention relates to a method for making monoclonal antibodies having predefined specificity of an epitope characteristic of or unique to a single form of a polymorphic protein. The method includes constructing a first transgenic animal to express a first form of a polymorphic protein encoded by a first allele of a gene encoding the protein; constructing a second transgenic animal to express a second form of the polymorphic protein encoded by a second allele of the gene encoding the protein; and immunizing the first transgenic animal with cells from the second transgenic animal expressing the second form of the polymorphic protein to induce an immune response in the first …

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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 November 14, 1997 and granted January 29, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 14, 2017.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 14, 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.
FiledNovember 14, 1997
GrantedJanuary 29, 2013
Term endedNovember 14, 2017
Patent numberCA 2308623 C
Classification (IPC)C12N5/28 +2 more

Timeline

Timeline From CIPO dates

1998200020022004200620082010201220142016Application filedNov 14, 1997Patent grantedJan 29, 2013Term endedNov 14, 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.