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Canadian application, no grantCanada

Peg-conjugates of hgf-nk4

CA 2438308 A1 · Owner: Papadimitriou, Apollon · Inventors: Brandt, Michael; Papadimitriou, Apollon

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

A conjugate comprising an N-terminal fragment of hepatocyte growth factor (HGF/SF) consisting of the hairpin domain and the four kringle regions of the .alpha.-chain and a polyethylene glycol group having an overall molecular weight of from about 20 to 40 kDA, has improved properties is a useful therapeutic agent for tumor treatment.

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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 February 21, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 21, 2022.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 21, 2024.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledFebruary 21, 2002
GrantedNo grant recorded
Term endedFebruary 21, 2022
Patent numberCA 2438308 A1
Classification (IPC)A61K47/48

Timeline

Timeline From CIPO dates

2003200520072009201120132015201720192021Application filedFeb 21, 2002Term endedFeb 21, 2022

Sources & verification

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