Patent Yard Sign in
Expired Canadian patentCanada

Magnetic protein conjugates, a process for the preparation thereof, and the use thereof

CA 1339199 C · Owner: Behringwerke Aktiengesellschaft · Inventors: Kurrle, Roland; Enble, Karlheinz; Seiler, Friedrich Robert

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 invention relates to magnetic protein conjugates of the formula I, (see fig.I), in which M represents a dispersible magnetically reacting material or particle which carries aminogroups P, represents a protein which carries one or more mercapto groups, and X represents an organic chemical structure which links the two ligands by chemical means to a, process for the preparation of protein conjugates of the formula I, and to the use of conjugates of this type for removing cells or soluble bioorganic molecules or components from aqueous salt solutions or body fluids and, to the use thereof within the framework of a diagnostic method or as a diagnostic aid.

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

  • Granted August 5, 1997. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 5, 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.
FiledMarch 9, 1989
GrantedAugust 5, 1997
Term endedAugust 5, 2014
Patent numberCA 1339199 C
Classification (IPC)C07K17/14 +2 more

Timeline

Timeline From CIPO dates

199019931996199920022005200820112014Application filedMarch 9, 1989Patent grantedAug 5, 1997Term endedAug 5, 2014

Sources & verification

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