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:
Jun. 24, 2008
Filed:
Jul. 01, 2004
Applicant:
Kyung-ju Choi, Louisville, KY (US);
Inventor:
Kyung-Ju Choi, Louisville, KY (US);
Assignee:
AAF-McQuay Inc., Louisville, KY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 39/14 (2006.01);
U.S. Cl.
CPC ...
Abstract
A filter media product and method of making the same wherein at least two independent filter media thicknesses of differing coarse and fine pore sizes are held in face-to-face relationship with the pore sizes being so calculated that the overall average pore size of successive thicknesses is smaller than the pore size of the finest fiber thickness.