Multiplex immunoassay system
CA 2021658 C · Owner: Boehringer Mannheim Corporation · Inventors: Block, Myron J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Disclosed is a method of an apparatus for assaying, in assay apparatus, for an analyte in a sample by specifically binding the analyte to a ligand having a detectable tag to form a complex the presence, of which can be determined quantitatively by measuring the amount of tag. In one embodiment, the sample is contacted in that apparatus with a test body of ligands so as to effect the specific binding. The body has at least two differently tagged different ligands in a predetermined ratio, at least a first of which tagged ligands being that which will specifically bind to the analyte. The second tagged ligand is one which will not specifically bind to the analyte or to other moieties in 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
- Filed July 20, 1990 and granted October 9, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 20, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 20, 2012.
- 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.