Filter cartridge

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Description

FIG. 1 is a perspective view, showing the new design for a filter cartridge;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a top view thereof; and,

FIG. 7 is a bottom view thereof.

The broken line showing forms no part of the claimed design.

Claims

The ornamental design for a filter cartridge, as shown and described.

Patent History
Patent number: D677780
Type: Grant
Filed: Apr 15, 2011
Date of Patent: Mar 12, 2013
Assignee: 3M Innovative Properties Company (St. Paul, MN)
Inventors: Dong-Il Choi (Kyoungi-Do), Kyoung-Ho Lee (Hwaseong-Si), Jin-Ho Lee (Seoul), BongHyup Kang (Seoul), Dong-Sun Noh (Bucheon-Si)
Primary Examiner: Richard E Chilcot
Application Number: 29/389,722
Classifications
Current U.S. Class: Mask (D24/110.1)