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Canadian application, no grantCanada

Assay systems for neurotrophin activity

CA 2109100 A1 · Owner: Aldrich, Thomas H. · Inventors: Distephano, Peter; Masiakowski, Piotr; Yancopoulos, George D.

CIPO record

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

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Abstract From the Canadian patent

The present invention provides for assay systems that may be used to detect and/or measure neurotrophin activity or to identify agents that exhibit neurotrophin-like activity. It is based at, least in part, on the discovery that the trkB proto-oncogene encodes a tyrosine kinase receptor that may serve as a functional binding protein for BDNF and NT-3. The present invention also provides for diagnostic and therapeutic methods based on the interaction between BDNF and/or NT-3 and trkB, and for a number of orphan receptor molecules.

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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 April 23, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 23, 2012.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 23, 2014.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledApril 23, 1992
GrantedNo grant recorded
Term endedApril 23, 2012
Patent numberCA 2109100 A1
Classification (IPC)C12N15/54 +2 more

Timeline

Timeline From CIPO dates

1993199519971999200120032005200720092011Application filedApril 23, 1992Term endedApril 23, 2012

Sources & verification

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