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. 18, 2001
Filed:
Apr. 16, 1997
Applicant:
Inventors:
John D. Tanner, Plymouth, MN (US);
David J. Emmons, Plymouth, MN (US);
Assignee:
PUR Water Purification Products, Inc., Cincinnati, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 2/4100 ;
U.S. Cl.
CPC ...
B01D 2/4100 ;
Abstract
A filter cartridge for a gravity-fed water treatment device having a porous particulate filter disposed therein. The porous particulate filter has an open upper end, a closed lower end, and sidewalls therebetween. Water is treated as it flows through the sidewalls of the filter. The cartridge also contains granular media disposed within the porous particulate filter.