The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jul. 25, 1989

Filed:

Jul. 14, 1987
Applicant:
Inventors:

Robert E Canfield, New York, NY (US);

Elmo G Armstrong, Bronx, NY (US);

Paul H Ehrlich, New York, NY (US);

Steven Birken, Dumont, NJ (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N / ; G01N / ; G01N / ;
U.S. Cl.
CPC ...
436510 ; 436518 ; 436529 ; 436548 ; 436804 ; 436813 ; 436814 ; 436818 ; 436823 ; 935110 ; 435-7 ; 435 68 ; 4351722 ; 43524027 ; 435188 ; 435192 ;
Abstract

An immunoassay for detecting and measuring hCG in a sample includes an antibody directed to the carboxy terminal portion of the .beta. subunit of hCG and a monoclonal antibody directed to a determinant on hCG at a locus sufficiently remote from the carboxy terminal portion of the .beta. subunit of hCG that both antibodies can simultaneously bind to hCG, wherein at least one of the antibodies is delectable when both are bound to hCG. In a presently preferred embodiment, an immunoassay for hCG or hCB.beta. in urine includes a purified, labeled or detectable serum-derived antibody directed to the carboxy-terminal portion of the .beta. subunit of hCG and a matrix-bound monoclonal antibody directed to a locus on the .beta. subunit sufficiently remote from the carboxy-terminal portion that both antibodies can simultaneously bind to hCG or hCG.beta..


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Canfield, Robert. (1989). Immunoassay for human chorionic gonadotropin (U.S. Patent No. 4851356). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4851356

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