Patent Yard Sign in
Expired Canadian patentCanada

Isolation and/or preservation of dendritic cells for prostate cancer immunotherapy

CA 2228176 C · Owner: Northwest Biotherapeutics, Inc. · Inventors: Tjoa, Benjamin A.; Boynton, Alton L.; Murphy, Gerald P.

CIPO record

Overview

Drawings and full text

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

Open the CIPO record

Abstract From the Canadian patent

Methods and compositions for use of human dendritic cells to activate T cells for immunotherapeutic responses against primary and metastatic prostate cancer are disclosed. In one embodiment, human dendritic cells after exposure to a , prostate cancer antigen or specific antigenic peptide are administered to a , prostate cancer patient to activate the relevant T cell responses in vivo. In an alternate embodiment, human dendritic cells are exposed to a prostate cancer antigen or specific antigenic peptide in vitro and incubated or cultured with primed or unprimed T cells to activate the relevant T cell responses in vitro. The activated T cells are then administered to a prostate cancer …

Read the whole patent

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 29, 1996 and granted May 26, 2015. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 29, 2016.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 29, 2018.
  • 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 29, 1996
GrantedMay 26, 2015
Term endedJuly 29, 2016
Patent numberCA 2228176 C
Classification (IPC)C12N5/07 +2 more

Timeline

Timeline From CIPO dates

1997199920012003200520072009201120132015Application filedJuly 29, 1996Patent grantedMay 26, 2015Term endedJuly 29, 2016

Sources & verification

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