Process and reagent for the determination of a specifically bindable substance
CA 2000545 C · Owner: Boehringer Mannheim Gmbh · Inventors: Schenk, Roland
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention provides a process for the determination of a specifically bindable substance by incubation of a sample solution with at least three receptors R1, R2 and R3, of which R1 is specifically bindable with R2 and R3, as well as with the substance to be determined, R2 brings about the binding to a solid phase and R3 carries a labelling, separation of bound labelling from unbound labelling and measurement of the labelling in one of: the two phases, wherein, as receptor R1 a, receptor is used which has at least two binding positions which bind specifically with an epitope of the substance to be determined, as R2 a conjugate of a partner P1 of a specifically binding pair and of …
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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 October 12, 1989 and granted May 9, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 12, 2009.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 12, 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.