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
D144654 | May 1946 | Wilson |
D503784 | April 5, 2005 | Tucker |
7194870 | March 27, 2007 | O'Brien |
D547849 | July 31, 2007 | Francisquini |
D548315 | August 7, 2007 | Lin |
D572810 | July 8, 2008 | Chiu |
D597188 | July 28, 2009 | Chen |
D601687 | October 6, 2009 | Chan |
D606184 | December 15, 2009 | Chiu |
D638923 | May 31, 2011 | Choi |
D725624 | March 31, 2015 | Carney |
D728089 | April 28, 2015 | Crisa' |
D741465 | October 20, 2015 | Satou |
D749202 | February 9, 2016 | Satou |
D750209 | February 23, 2016 | Satou |
D791297 | July 4, 2017 | Ljungstrom |
9694369 | July 4, 2017 | Engberg |
D796020 | August 29, 2017 | Lee |
9919252 | March 20, 2018 | Wennerstrom |
D835765 | December 11, 2018 | Chen |
D837354 | January 1, 2019 | Su |
D841783 | February 26, 2019 | Hu |
D844766 | April 2, 2019 | Miao |
20100275630 | November 4, 2010 | DeMonte |
20100293981 | November 25, 2010 | Jang |
20180172290 | June 21, 2018 | Zhou |
303522333 | December 2015 | CN |
304245843 | August 2017 | CN |
D1540290 | December 2015 | JP |
D1547857 | April 2016 | JP |
D1547859 | April 2016 | JP |
D1547861 | April 2016 | JP |
Patent History
Patent number: D862673
Type: Grant
Filed: Jun 14, 2018
Date of Patent: Oct 8, 2019
Assignee: 3M Innovative Properties Company (St. Paul, MN)
Inventors: Xinchun Tang (Shanghai), Zijing Cao (Shanghai)
Primary Examiner: David G Muller
Assistant Examiner: Nathan M Johnston
Application Number: 29/653,371
Type: Grant
Filed: Jun 14, 2018
Date of Patent: Oct 8, 2019
Assignee: 3M Innovative Properties Company (St. Paul, MN)
Inventors: Xinchun Tang (Shanghai), Zijing Cao (Shanghai)
Primary Examiner: David G Muller
Assistant Examiner: Nathan M Johnston
Application Number: 29/653,371
Classifications
Current U.S. Class:
Air Cleaner (D23/364)