Patent Yard Sign in
Expired Canadian patentCanada

Monoclonal antibodies to stem cell factor receptors

CA 2107553 C · Owner: Lin, Nancy · Inventors: Broudy, Virginia C.; Lin, Nancy

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

The present invention relates to monoclonal antibodies specific for a cell receptor specific for human stem cell factor (hSCF) as well as pharmaceutical compositions containing such monoclonal antibodies and uses of such monoclonal antibodies. These antibodies are useful for detecting the presence of stem cell factor receptors in a cell sample and for purifying hematopoietic cells.

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 April 3, 1992 and granted July 31, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 3, 2012.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 3, 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 3, 1992
GrantedJuly 31, 2001
Term endedApril 3, 2012
Patent numberCA 2107553 C
Classification (IPC)C12P21/08 +2 more

Timeline

Timeline From CIPO dates

1993199519971999200120032005200720092011Application filedApril 3, 1992Patent grantedJuly 31, 2001Term endedApril 3, 2012

Sources & verification

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