Room air purifier

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Description

FIG. 1 is a perspective view showing the new design for a room air purifier;

FIG. 2 is a front view thereof;

FIG. 3 is a back view thereof;

FIG. 4 is a side view thereof, the opposite side view being a mirror image of the side view shown;

FIG. 5 is a top view thereof; and,

FIG. 6 is a bottom view thereof.

Claims

The ornamental design for a room air purifier, as shown and described.

Referenced Cited
U.S. Patent Documents
D355962 February 28, 1995 Chiu et al.
D430658 September 5, 2000 Farce
D434843 December 5, 2000 Zaragoza et al.
D449677 October 23, 2001 Denham et al.
D449877 October 30, 2001 Delmenico et al.
D462431 September 3, 2002 Bunce et al.
D513797 January 24, 2006 Wang
D536431 February 6, 2007 Campbell et al.
D539882 April 3, 2007 Li
D544593 June 12, 2007 Yamamoto
D548317 August 7, 2007 Newton et al.
D550827 September 11, 2007 Ediger et al.
D560788 January 29, 2008 Farrell et al.
Patent History
Patent number: D574072
Type: Grant
Filed: Oct 24, 2007
Date of Patent: Jul 29, 2008
Assignee: 3M Innovative Properties Company (St. Paul, MN)
Inventors: Casey L. Carlson (Edina, MN), Glendon D. Kappel (Eagan, MN)
Primary Examiner: Louis S Zarfas
Assistant Examiner: David G Muller
Attorney: David B. Patchett
Application Number: 29/296,617
Classifications
Current U.S. Class: Air Cleaner (D23/364)