Air cleaner

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Description

FIG. 1 is a perspective view of a first embodiment of an air cleaning device, showing our new design;

FIG. 2 is a rear view thereof;

FIG. 3 is a right view thereof;

FIG. 4 is a left view thereof; and,

FIG. 5 is a top or bottom view thereof.

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
3458794 July 1969 Bohnstedt et al.
D377213 January 7, 1997 Wang
D379220 May 13, 1997 Ellwood
D388510 December 30, 1997 Rick et al.
D395146 June 16, 1998 Miller et al.
5762667 June 9, 1998 Pippel et al.
5800583 September 1, 1998 Pippel et al.
D399943 October 20, 1998 Ko
D402022 December 1, 1998 Termeer et al.
D426293 June 6, 2000 Tounsi et al.
D434483 November 28, 2000 Pinchuk
D449097 October 9, 2001 Smith et al.
D450377 November 13, 2001 Terpko et al.
6315821 November 13, 2001 Pillion et al.
D459458 June 25, 2002 Pillion et al.
Patent History
Patent number: D484228
Type: Grant
Filed: Nov 20, 2002
Date of Patent: Dec 23, 2003
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: 29/171,315
Classifications
Current U.S. Class: Air Cleaner (D23/364)
International Classification: 2304;