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:
Apr. 24, 1990
Filed:
Oct. 08, 1987
Applicant:
Inventors:
Edward McFarland, Baltimore, MD (US);
Keith Uithoven, West Friendship, MD (US);
Jeffrey Carlson, Mountain View, CA (US);
Assignee:
Becton, Dickinson and Company, Franklin Lakes, NJ (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N / ; G01N / ; G01N / ; G01N / ;
U.S. Cl.
CPC ...
435-7 ; 435810 ; 436518 ; 436519 ; 436528 ; 436800 ; 436808 ; 436824 ; 436829 ; 422 56 ; 422 60 ;
Abstract
A flow through test device and assay kit suitable for use by unskilled technicians is described. The flow through device has a porous support and an absorptive layer. The device is constructed for control of flow rates so that a tracer having a visible particulate label can be used. Optional flow control and porous spacer layers may be included.