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:
Dec. 23, 1986
Filed:
Apr. 02, 1985
Applicant:
Inventor:
Asaji Kondo, Saitama, JP;
Assignee:
Fuji Photo Film Co., Ltd., Kanagawa, JP;
Primary Examiner:
Int. Cl.
CPC ...
G01N / ;
U.S. Cl.
CPC ...
422 56 ; 435805 ; 436810 ;
Abstract
Chemical analysis sheets comprising a reagent layer, a porous spreading layer and a cover layer provided with a small opening are disclosed. The cover layer prevents rapid evaporation of moisture to ensure a complete reaction between the chemical reagent and the ingredient tested for.