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:
Jun. 07, 1977
Filed:
Nov. 10, 1975
Applicant:
Inventors:
Nathan Lewin, Corte Madera, CA (US);
Emmy Tong-In Wong, Moraga, CA (US);
Assignee:
Bio-Rad Laboratories, Richmond, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D / ; G01N / ; G01N / ; G01T / ;
U.S. Cl.
CPC ...
424-1 ; 2323 / ; 232306 ; 2602515 ;
Abstract
Serum folate assay procedure by competitive binding in which serum folate is stabilized while being freed from serum folate proteins in the presence of a dithiopolyol, preferably a 1,4-dithiotetritol such as dithiothreitol. Subsequently in the procedure, free folate is separated from competitively bound folate by the addition of dry dextran coated charcoal in a tablet form.