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.
Patent No.:
Date of Patent:
Mar. 30, 1976
Filed:
May. 29, 1973
Applicant:
Inventors:
Charles F Shannon, Concord, CA (US);
Robert V Dahlstrom, San Rafael, CA (US);
Assignee:
Bio-Rad Laboratories, Richmond, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N / ; G01T / ;
U.S. Cl.
CPC ...
424-1 ; 2323 / ; 250303 ;
Abstract
A method for determining serum thyroxine (T-4) in which the T-4 is first separated from the serum by adsorption onto a montmorillonite clay and then competitively bound by exogenous thyroxine binding globulin in the presence of a known amount of radioactive T-4. The competitively bound serum T-4 and radioactive T-4 is separated from the unbound serum T-4 and radioactive T-4 by passage through an ion exchange resin column. The serum T-4 concentration is determined by measuring the amount of bound radioactive T-4 and referring to a standard curve.