Air cleaner
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Description
FIG. 1 is a perspective view of an air cleaning device, showing our new design;
FIG. 2 is a right view of FIG. 1;
FIG. 3 is a left view of FIG. 1;
FIG. 4 is a top view of FIG. 1; and,
FIG. 5 is front view of FIG. 1.
The phantom line shown in the drawings forms no part of the claimed design(s).
Claims
The ornamental design for a air cleaner, as shown and described.
Referenced Cited
U.S. Patent Documents
| D270467 | September 6, 1983 | Fowler et al. |
| D379220 | May 13, 1997 | Ellwood |
| D447124 | August 28, 2001 | Morimiya et al. |
| D450825 | November 20, 2001 | Nakamura et al. |
| D451181 | November 27, 2001 | Miwa |
| D457230 | May 14, 2002 | Huang |
| D459457 | June 25, 2002 | Pillion et al. |
| D459458 | June 25, 2002 | Pillion et al. |
| D471883 | March 18, 2003 | Sugiyama et al. |
Patent History
Patent number: D491655
Type: Grant
Filed: Aug 5, 2003
Date of Patent: Jun 15, 2004
Assignee: 3M Innovative Properties Company (St. Paul, MN)
Inventors: Zhiqun Zhang (Roseville, MN), Robert M. Swinehart (Marine on St. Croix, MN)
Primary Examiner: Robin V. Taylor
Attorney, Agent or Law Firms: Gary L. Griswold, Robert W. Sprague, William J. Bond
Application Number: 29/187,762
Type: Grant
Filed: Aug 5, 2003
Date of Patent: Jun 15, 2004
Assignee: 3M Innovative Properties Company (St. Paul, MN)
Inventors: Zhiqun Zhang (Roseville, MN), Robert M. Swinehart (Marine on St. Croix, MN)
Primary Examiner: Robin V. Taylor
Attorney, Agent or Law Firms: Gary L. Griswold, Robert W. Sprague, William J. Bond
Application Number: 29/187,762
Classifications
