Reagent for assaying antigen and method of assaying antigen
CA 2591872 C · Owner: Kotani, Kazuo · Inventors: Yago, Hirokazu; Kotani, Kazuo; Honjo, Yuki
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
It is intended to provide a reagent and an assay method whereby an antigen can be conveniently and accurately assayed without resorting to any special antibody. Using two or more carriers having different particle sizes a , carrier having a smaller particle size is sensitized with at least one monoclonal antibody, which is selected from among three monoclonal antibodies being reactive with both of a free antigen and a complex antigen and having different recognition sites from each other while a carrier having a larger , particle size is sensitized with the remainder monoclonal antibodies thereby , providing an assay reagent and an assay method whereby the reactivities of a free …
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 December 22, 2005 and granted August 12, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 22, 2025.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
- 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.