Air purifier
Latest 3M Innovative Properties Company Patents:
- Composition including an acrylic polymer, a water-repellent polymer, and an ultraviolet light stabilizer and related articles and methods
- High efficiency infrared reflector having reduced color
- Optical systems including angle control films
- Fall-protection system with monitoring system
- Fall arresting device connector
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
| D556309 | November 27, 2007 | Chiu |
| D572810 | July 8, 2008 | Chiu |
| D590488 | April 14, 2009 | Chiu |
| 7531141 | May 12, 2009 | Descotes |
| D634415 | March 15, 2011 | Abbondanzio |
| D638923 | May 31, 2011 | Choi |
| D664248 | July 24, 2012 | Huang |
| D672858 | December 18, 2012 | Abbondanzio |
| D675303 | January 29, 2013 | Raupach |
| D704320 | May 6, 2014 | Li |
| D705410 | May 20, 2014 | Terao |
| D729919 | May 19, 2015 | Yeom |
| D749202 | February 9, 2016 | Satou |
| D754831 | April 26, 2016 | Yin |
| D773027 | November 29, 2016 | Hu et al. |
| D786415 | May 9, 2017 | Kim |
| D788279 | May 30, 2017 | Lee |
| D790050 | June 20, 2017 | Shin |
| D793543 | August 1, 2017 | Alnæs |
| D797272 | September 12, 2017 | Poindexter |
| D797913 | September 19, 2017 | Asvaintra |
| D802112 | November 7, 2017 | Jeon |
| D819189 | May 29, 2018 | Chen |
| D820423 | June 12, 2018 | Poindexter |
| D827799 | September 4, 2018 | Shin |
| D835248 | December 4, 2018 | Echeverri |
| D835249 | December 4, 2018 | Echeverri |
| D1554467 | July 2016 | JP |
| D1561709 | October 2016 | JP |
Patent History
Patent number: D878530
Type: Grant
Filed: Apr 13, 2018
Date of Patent: Mar 17, 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: 29/644,122
Type: Grant
Filed: Apr 13, 2018
Date of Patent: Mar 17, 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: 29/644,122
Classifications
Current U.S. Class:
Air Cleaner (D23/364)