Air purifier
Latest 3M INNOVATIVE PROPERTIES COMPANY Patents:
- Conducting multivariate experiments
- Gel adhesive comprising crosslinked blend of polydiorganosiloxane and acrylic polymer
- Determining causal models for controlling environments
- Mixing and dispensing curable multi-component materials
- Pixel optical sensing of visibly transparent object utilizing reflective materials for personal protective equipment
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
D401318 | November 17, 1998 | Rakocy |
D422690 | April 11, 2000 | Rakocy |
D431644 | October 3, 2000 | Huang |
D446577 | August 14, 2001 | Barker |
D448461 | September 25, 2001 | Toro |
D457230 | May 14, 2002 | Huang |
D518563 | April 4, 2006 | Blateri |
D650474 | December 13, 2011 | Huang |
D673665 | January 1, 2013 | Langford |
D719250 | December 9, 2014 | Poindexter |
D729919 | May 19, 2015 | Yeom |
D755942 | May 10, 2016 | Kim |
D835765 | December 11, 2018 | Chen |
D852344 | June 25, 2019 | Hua |
D874626 | February 4, 2020 | Protet |
D876599 | February 25, 2020 | He |
D877873 | March 10, 2020 | Pan |
D879273 | March 24, 2020 | Shih |
D886269 | June 2, 2020 | Sakamoto |
D888921 | June 30, 2020 | Fujii |
D1101048 | February 2001 | JP |
D1235105 | April 2005 | JP |
Patent History
Patent number: D912236
Type: Grant
Filed: Aug 19, 2019
Date of Patent: Mar 2, 2021
Assignee: 3M INNOVATIVE PROPERTIES COMPANY (St. Paul, MN)
Inventors: Alonso M. Hernandez (Minneapolis, MN), Brian D. Gale (Blaine, MN), Connor M. Pelletier-Sutton (St. Paul, MN)
Primary Examiner: David G Muller
Application Number: 29/702,380
Type: Grant
Filed: Aug 19, 2019
Date of Patent: Mar 2, 2021
Assignee: 3M INNOVATIVE PROPERTIES COMPANY (St. Paul, MN)
Inventors: Alonso M. Hernandez (Minneapolis, MN), Brian D. Gale (Blaine, MN), Connor M. Pelletier-Sutton (St. Paul, MN)
Primary Examiner: David G Muller
Application Number: 29/702,380
Classifications
Current U.S. Class:
Air Cleaner (D23/364)