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:
Sep. 01, 1992
Filed:
Mar. 01, 1990
Applicant:
Inventors:
Koshy T Chacko, Mundelein, IL (US);
Karen L Fitzgerald, Wheeling, IL (US);
James J Markese, Downers Grove, IL (US);
Assignee:
Abbott Laboratories, Abbott Park, IL (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N / ; C12Q / ;
U.S. Cl.
CPC ...
435-79 ; 435-792 ; 435 21 ; 435968 ; 435963 ;
Abstract
A 4-methylumbelliferyl phosphate substrate for use in conducting an immunoassay is disclosed. The substrate contains 0.1 gram mole per liter 2-amino-2-methyl-1-propanol, 0.01 to 0.05 gram mole per liter EDTA, added as trisodium EDTA, 1 gram per liter sodium azide, 1.2 milligram mole per liter 4-methylumbelliferyl phosphate and 4 milligram moles per liter tetramisole. The pH of the substrate disclosed is 10.3.