Air purifier
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Description
The portions of the air purifier in
Claims
The ornamental design for an air purifier, as shown and described.
Referenced Cited
U.S. Patent Documents
Foreign Patent Documents
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Patent History
Patent number: D877873
Type: Grant
Filed: Apr 13, 2018
Date of Patent: Mar 10, 2020
Assignee: 3M Innovative Properties Company (St. Paul, MN)
Inventors: Angela L. Pan (Arden Hills, MN), Aaron P. Thompson (Menomonie, WI), Alonso M. Hernandez (St. Paul, MN), Connor M. Pelletier-Sutton (St. Paul, MN)
Primary Examiner: Nathan M Johnston
Application Number: 29/644,060
Type: Grant
Filed: Apr 13, 2018
Date of Patent: Mar 10, 2020
Assignee: 3M Innovative Properties Company (St. Paul, MN)
Inventors: Angela L. Pan (Arden Hills, MN), Aaron P. Thompson (Menomonie, WI), Alonso M. Hernandez (St. Paul, MN), Connor M. Pelletier-Sutton (St. Paul, MN)
Primary Examiner: Nathan M Johnston
Application Number: 29/644,060
Classifications
Current U.S. Class:
Air Cleaner (D23/364)