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. 20, 1993
Filed:
Dec. 12, 1991
Applicant:
Inventor:
Michael P Allen, Sunnyvale, CA (US);
Assignee:
Chemtrak, Inc., Sunnyvale, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N / ; G01N / ;
U.S. Cl.
CPC ...
422 58 ; 422 56 ; 422 57 ; 422 61 ; 422104 ; 436169 ; 436170 ; 436164 ; 435810 ;
Abstract
Improved self-contained automated assay devices are provided which allow for reliable release of eluent solution upon opening of a pouch with scoring teeth, so that the solution is transferred to a well for carrying out the assay. The improvements comprise using a bibulous member which is moved into the pouch to initiate eluent solution transport or providing for a sudden shock to the solution to initiate flow.