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Expired Canadian patentCanada

Psca: prostate stem cell antigen and uses thereof

CA 2566516 C · Owner: The Regents Of The University Of California · Inventors: Witte, Owen; Reiter, Robert

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

The invention provides a novel prostate cell-surface antigen designated Prostate Stem Cell Antigen (PSCA) which is widely over-expressed across all stages of prostate cancer including high grade prostatic intraepithelial neoplasia (PIN) androgen-dependent and andro-gen-independent prostate tumors. It also provides antibodies to PSCA. Further methods of detection/diagnosis and treatment as well as a transgenic animal are provided.

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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 2, 1999 and granted March 31, 2015. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 2, 2019.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 2, 2021.
  • 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 2, 1999
GrantedMarch 31, 2015
Term endedDecember 2, 2019
Patent numberCA 2566516 C
Classification (IPC)G01N33/57 +2 more

Timeline

Timeline From CIPO dates

2000200220042006200820102012201420162018Application filedDec 2, 1999Patent grantedMarch 31, 2015Term endedDec 2, 2019

Sources & verification

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