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Canadian application, no grantCanada

Tumor antigen

CA 2465639 A1 · Owner: Green Peptide Co. Ltd · Inventors: Shichijo, Shigeki; Itoh, Kyogo

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 gene which is recognized by HLA A2 restricted cytotoxic T lymphocytes (CTL) and/or induces CTL is isolated from a human glyoma cell line KNS60 cDNA library and identified. Based on a tumor antigen encoded by the thus obtained gene, a peptide having the epitope of the tumor antigen is found out.

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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 October 29, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 29, 2022.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 29, 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.
FiledOctober 29, 2002
GrantedNo grant recorded
Term endedOctober 29, 2022
Patent numberCA 2465639 A1
Classification (IPC)C07K7/04 +2 more

Timeline

Timeline From CIPO dates

2003200520072009201120132015201720192021Application filedOct 29, 2002Term endedOct 29, 2022

Sources & verification

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