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Expired Canadian patentCanada

Fusion polypeptides comprising an ige-binding domain and a hsa component, and their diagnostic and therapeutic uses

CA 2261562 C · Owner: Novartis Ag · Inventors: Lake, Philip; Gram, Hermann; Digan, Mary Ellen

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Abstract From the Canadian patent

Fusion polypeptides and salts thereof comprising at least one IgE-binding domain fused to at least one human serum albumin component optionally via a , peptide linker, and in particular dimeric fusion polypeptides comprising HSA protein fused, at each of its amino and carboxy termini to an extracellular , domain of the .alpha.-chain of the human high affinity receptor for IgE (Fc.epsilon.RI.alpha.); process for the preparation thereof functionally , equivalent polypeptides which are intermediates in their preparation and , polynucleotide and oligonucleotide intermediates and vectors therefor. They are indicated for use in the prevention and/or treatment of IgE-mediated allergic …

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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 July 25, 1997 and granted April 5, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 25, 2017.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 25, 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.
FiledJuly 25, 1997
GrantedApril 5, 2011
Term endedJuly 25, 2017
Patent numberCA 2261562 C
Classification (IPC)C12N15/62 +2 more

Timeline

Timeline From CIPO dates

1998200020022004200620082010201220142016Application filedJuly 25, 1997Patent grantedApril 5, 2011Term endedJuly 25, 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.