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:
Aug. 14, 1990
Filed:
Feb. 09, 1989
Applicant:
Inventors:
Charles C Hinckley, Pittsford, NY (US);
Thomas J Cummins, Rochester, NY (US);
Sheryl S Sullivan, Hilton, NY (US);
Assignee:
Eastman Kodak Company, Rochester, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N / ; B01D / ;
U.S. Cl.
CPC ...
422 61 ; 2103216 ; 21032164 ; 21032184 ; 210490 ; 210492 ; 210506 ; 422 58 ; 422101 ; 436178 ; 436808 ; 436824 ; 436825 ; 436175 ;
Abstract
A filter providing at least two different filtering pore sizes for coarse and fine filtering, and a kit containing such filter along with an immunoassay test device containing a membrane. The membrane is used to separate bound immunoassay labels from free labels. The coarse and fine filtering are provided preferably by two different, serially arranged filters, the filter with the fine pore size being selected with a pore size similar to that of the membrane of the assay device.