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. 28, 1993
Filed:
Jun. 13, 1991
Carl N Skold, Mountain View, CA (US);
Armen B Shanafelt, San Francisco, CA (US);
Vartan Ghazarossian, Menlo Park, CA (US);
Edwin F Ullman, Atherton, CA (US);
Syntex (U.S.A) Inc., Palo Alto, CA (US);
Abstract
A method is disclosed for conducting an assay for an analyte. The method comprises causing a specific binding pair member in a first aqueous medium to become bound to a first bibulous member by contacting a portion of the first bibulous member with the medium. The first bibulous member is in liquid receiving relationship with an absorbent member. The contacting is carried out under conditions wherein the first medium traverses the first bibulous member and at least a portion of the absorbent member by capillary action. The method further comprises causing the first bibulous member to come into liquid receiving relationship with a second bibulous member. A reagent in a second aqueous medium is absorbed by and preferably becomes non-diffusively bound to the second bibulous member in relation to the presence of analyte in the first medium. This is accomplished by contacting a portion of the first bibulous member with the second aqueous medium under conditions wherein the second aqueous medium traverses the first bibulous member by capillary action and at least a portion of the second bibulous member. Next, the presence of the reagent on at least a portion of the second bibulous member is determined.