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. 16, 1980
Filed:
Apr. 30, 1979
Applicant:
Inventors:
Anselm Rothe, Birkenau, DE;
Adolf K Selle, Birkenau, DE;
Hans-Rudolf Lange, Lampertheim, DE;
Walter Rittersdorf, Mannheim, DE;
Wolfgang Werner, Mannheim, DE;
Assignee:
Boehringer Mannheim GmbH, Mannheim, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N / ; G01N / ; G01N / ; G01N / ;
U.S. Cl.
CPC ...
435 12 ; 2323 / ; 23924 ; 422 56 ; 435805 ; 435 15 ; 435 18 ;
Abstract
Diagnostic device for the determination of ammonia having a handle, an ammonia indicator layer thereon and an alkaline buffer-containing reaction layer positioned above the indicator layer a distance of 10 to 200 microns by a spacer member. The reaction layer is readily separated from the indicator layer to reveal the latter at the end of the ammonia test.