Air filter

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Description

FIG. 1 is a perspective view showing the new design for an air filter;

FIG. 2 is a top view thereof;

FIG. 3 is a bottom view thereof;

FIG. 4 is a front view thereof; and,

FIG. 5 is a side view thereof.

The portions in the drawing views shown in broken lines form no part of the claimed design. In addition, the dot-dash-dot type broken lines shown in the drawing views define the boundaries of the claimed design and form no part of the claimed design.

Claims

The ornamental design for an air filter, as shown and described.

Referenced Cited
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Other references
  • U.S. Appl. No. 29/424,105, filed Jun. 7, 2012 entitled “Air Filter”.
Patent History
Patent number: D732153
Type: Grant
Filed: Aug 16, 2013
Date of Patent: Jun 16, 2015
Assignee: 3M INNOVATIVE PROPERTIES COMPANY (St. Paul, MN)
Inventors: Stephen M. Sanocki (Hudson, WI), Christopher K. Enstrom (Eagan, MN), Glen O. Gregerson (Hudson, WI), Daniel E. Johnson (Marine On St. Croix, MN), Andrew R. Fox (Oakdale, MN)
Primary Examiner: David Muller
Application Number: 29/464,482
Classifications
Current U.S. Class: Filter (D23/365)