Patent Yard Sign in
Expired Canadian patentCanada

Method of isolating cd8+ cells, and related hybridoma cells, antibodies and polypeptides

CA 2365639 C · Owner: Ortho-Mcneil Pharmaceutical, Inc. · Inventors: Leturcq, Didier

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

This invention provides a method of isolating CD8+ cells which employs an antibody which specifically binds to CD8 molecules present on the surface of CD8+ cells but does not activate the CD8+ cells once bound. This invention also provides related hybridoma cell lines monoclonal antibodies, antigenic , polypeptides isolated CD8+ cells, and kits.

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 March 8, 2000 and granted May 14, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 8, 2020.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 8, 2022.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMarch 8, 2000
GrantedMay 14, 2013
Term endedMarch 8, 2020
Patent numberCA 2365639 C
Classification (IPC)C12N5/07 +2 more

Timeline

Timeline From CIPO dates

2001200320052007200920112013201520172019Application filedMarch 8, 2000Patent grantedMay 14, 2013Term endedMarch 8, 2020

Sources & verification

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