Filter cartridge
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The phantom lines shown in the drawings depict portions of the drawings not considered to be part of the claimed design. The dash dot break lines in the drawings indicate that no particular length is claimed.
Claims
The ornamental design for a filter cartridge, as shown and described.
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Type: Grant
Filed: Jul 22, 2008
Date of Patent: Oct 4, 2011
Assignee: Donaldson Company, Inc. (Minneapolis, MN)
Inventors: Benny Kevin Nelson (Bloomington, MN), Daniel Robert Zientara (Lakeville, MN), Jasson Louis Petricka (Faribautl, MN)
Primary Examiner: David Muller
Attorney: Merchant & Gould P.C.
Application Number: 29/310,027