Filter cartridge
Latest 3M Innovative Properties Company Patents:
Description
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
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)