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Expired Canadian patentCanada

Expression of the recombinant tumor necrosis factor binding protein i (tbp-i)

CA 2032191 C · Owner: Brakebusch, Cord · Inventors: Brakebusch, Cord; Wallach, David; Nophar, Yaron

CIPO record

Overview

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

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Abstract From the Canadian patent

Tumor Necrosis Factor Binding Protein I (TBP-I) precursors and analogs thereof, are produced by transfecting eukaryotic cells with an expression vector comprising a DNA molecule encoding the whole human type I TNF receptor or a soluble domain thereof, and culturing the transfected cells whereby, the soluble proteins are secreted into the medium.

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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 December 13, 1990 and granted May 18, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 13, 2010.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 13, 2012.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledDecember 13, 1990
GrantedMay 18, 1999
Term endedDecember 13, 2010
Patent numberCA 2032191 C
Classification (IPC)C07K14/71 +2 more

Timeline

Timeline From CIPO dates

1991199319951997199920012003200520072009Application filedDec 13, 1990Patent grantedMay 18, 1999Term endedDec 13, 2010

Sources & verification

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