Portable oxygen concentrator
Description
The broken lines shown in the drawings represent portions of the portable oxygen concentrator that form no part of the claimed design.
Claims
The ornamental design for a portable oxygen concentrator, as shown and described.
Referenced Cited
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Patent History
Patent number: D982162
Type: Grant
Filed: Aug 22, 2022
Date of Patent: Mar 28, 2023
Inventor: Song Jiang (Shanghai)
Primary Examiner: Rhea Shields
Application Number: 29/850,650
Type: Grant
Filed: Aug 22, 2022
Date of Patent: Mar 28, 2023
Inventor: Song Jiang (Shanghai)
Primary Examiner: Rhea Shields
Application Number: 29/850,650
Classifications
Current U.S. Class:
Pulmonary (38) (D24/164)