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. 08, 1982
Filed:
Oct. 08, 1980
Applicant:
Inventor:
Martin Fleisher, Glen Cove, NY (US);
Assignee:
Sloan-Kettering Institute for Cancer Research, New York, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N / ; G01N / ;
U.S. Cl.
CPC ...
2323 / ; 23931 ; 252408 ; 422 56 ; 422 61 ; 435184 ;
Abstract
Diagnostic test device for fecal occult blood utilizing a test matrix such as paper impregnated with guaiac. False-positive results in the presence of peroxidases are prevented by adding to the matrix a compound that cleaves protein hydrogen bonds such as guanidine hydrochloride and a chelating agent that binds calcium and/or magnesium such as EDTA.