Air purifier
Description
The broken line showing of parts of the drawings is included for the purpose of illustrating use and environment and forms no part of the claimed design.
Claims
The ornamental design for an air purifier, as shown and described.
Referenced Cited
Patent History
Patent number: D838823
Type: Grant
Filed: Aug 9, 2017
Date of Patent: Jan 22, 2019
Assignee: Shanghai RHEIN Environmental Technology Co., Ltd. (Shanghai)
Inventor: Xianghui Yu (Shanghai)
Primary Examiner: David G Muller
Application Number: 29/613,392
Type: Grant
Filed: Aug 9, 2017
Date of Patent: Jan 22, 2019
Assignee: Shanghai RHEIN Environmental Technology Co., Ltd. (Shanghai)
Inventor: Xianghui Yu (Shanghai)
Primary Examiner: David G Muller
Application Number: 29/613,392
Classifications
Current U.S. Class:
Air Cleaner (D23/364)