Immunological complex, its preparation and its use
CA 1329545 C · Owner: Tetramerics Biotechnology Inc. · Inventors: Lansdorp, Peter Michael
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to an immunological complex of two primary antibodies, which have been conjugated to form a cyclic tetramer with two linker antibodies directed against the Fc-fragments of the primary antibodies. Preferably the complex, is bifunctional, that is to say that it contains two different, primary antibodies one of which is preferably directed to a detectable substance, such as an enzyme e.g. peroxidase, and the, other is directed to any desired antigen. A tetrameric complex of this kind may be used as a labelled antibody in immunoassays. Further the invention relates to processes for preparing the complexes and for using the complexes in immunological reactions. Finally the …
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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
- Granted May 17, 1994. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 17, 2011.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.