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. 15, 1997
Filed:
May. 30, 1995
Applicant:
Inventors:
N Chung Sizto, Palo Alto, CA (US);
Nurith Kurn, Palo Alto, CA (US);
Rajesh D Patel, Fremont, CA (US);
Martin Becker, Palo Alto, CA (US);
Edwin F Ullman, Atherton, CA (US);
Assignee:
Behringwerke AG, Marburg, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N / ; G01N / ;
U.S. Cl.
CPC ...
422 56 ; 422 58 ; 422 61 ; 435-71 ; 435970 ; 435975 ; 436514 ;
Abstract
Disclosed are assay apparatus, devices and methods that permit longitudinal capillary flow of liquid between two pieces of bibulous material which, prior to actuation, are in a non-capillary flow relationship to each other. In particular, the devices utilize a distortable member which when distorted, actuates the device by creating a capillary flow relationship between the two pieces of bibulous material. In an alternative embodiment the apparatus, devices, and methods include at least one additional piece of bibulous material.