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:
Apr. 11, 1978

Filed:

Jun. 04, 1970
Applicant:
Inventors:

Joseph Epstein, Baltimore, MD (US);

Robert M Heggie, Ottawa, CA;

John J Norman, Ottawa, CA;

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G01N / ;
U.S. Cl.
CPC ...
2323 / ; 2323 / ; 252408 ; 260924 ; 260934 ;
Abstract

A method comprising an unknown solution adding an organophosphorus thio a salt solution for sufficient time to form compounds having anticholinesterase activity in the reaction solution, contacting the reaction solution with a cholinesterase supported on a suitable substrate, adding indoxyl acetate and observing a non-color or blue color change in the substrate; the absence of color indicates the formation of compounds with anticholinesterase activity and the blue color of the substrate indicating that there was no formation of compounds with anticholinesterase activity.


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