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:
Jul. 21, 1992
Filed:
Feb. 28, 1991
Applicant:
Inventor:
Geraldine A Pelanek, Webster, NY (US);
Assignee:
Eastman Kodak Company, Rochester, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N / ; G01N / ; G01N / ; C12M / ;
U.S. Cl.
CPC ...
422 55 ; 422 56 ; 422 57 ; 422 58 ; 422 59 ; 422 60 ; 422 61 ; 435288 ; 435293 ; 436169 ; 436809 ;
Abstract
There are described assay devices having a control surface on which controls are deposited to produce a representational symbol that preferably indicates a satisfactory test procedure, or a failure in the test procedure. In one aspect of the invention, the symbol comprises exclusively the positive control areas and the negative control area, so that the negative control area will convert the 'satisfactory' symbolism into 'unsatisfactory' symbolism. In another aspect, the symbols that are formed are 'OK' and 'OK', respectively.