Immunochemical assay of carcinoembryonic antigen and reagent therefor
CA 1306427 C · Owner: Kondo, Koichi · Inventors: Kondo, Koichi; Suzuki, Nobuhiro
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of the Disclosure An immunochemical assay of human carcinoembryonic antigen (CEA), comprising the use of an antibody supported on a carrier and an antibody labeled with peroxidase by coupling by means of a compound of the formula: wherein n is an integer of 0 to 5 and R is a chemical bond or a divalent 6-membered cyclic hydrocarbon residue in which, at least one of said antibodies is a monoclonal antibody can be conducted in high sensitivity by simple and easy operation in a clinical laboratories.
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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 August 18, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 18, 2009.
- 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.