Air purifier

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Description

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

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a top view thereof; and,

FIG. 7 is a bottom view thereof.

The portions of the air purifier in FIGS. 1-7 shown in broken lines are included to show features that form no part of the claimed design.

Claims

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

Referenced Cited
U.S. Patent Documents
D534639 January 2, 2007 Zhang
D535371 January 16, 2007 Bushee
D668749 October 9, 2012 Thomas
D780900 March 7, 2017 Dichraff
D799015 October 3, 2017 Tang
D810906 February 20, 2018 Yoon
D829875 October 2, 2018 Stanhope
D835248 December 4, 2018 Echeverri
D840012 February 5, 2019 Zhou
D844766 April 2, 2019 Miao
D853544 July 9, 2019 Vu
D861145 September 24, 2019 Fang
D876599 February 25, 2020 He
Foreign Patent Documents
304987503 January 2019 CN
Patent History
Patent number: D891599
Type: Grant
Filed: Apr 12, 2019
Date of Patent: Jul 28, 2020
Assignee: 3M Innovative Properties Company (St. Paul, MN)
Inventors: Man Li (Shanghai), Liliang Liu (Shanghai), Xuefeng Sun (Shanghai), Kin Hang Siu (Shanghai)
Primary Examiner: David G Muller
Application Number: 29/687,337
Classifications
Current U.S. Class: Air Cleaner (D23/364)