Oxygen concentrator
Description
The patent or application file contains at least one drawing executed in color. Copies of this patent or patent application publication with color drawing(s) will be provided by the Office upon request and payment of the necessary fee.
1. Oxygen concentrator
Claims
The ornamental design for an oxygen concentrator, as shown and described.
Referenced Cited
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Patent History
Patent number: D1031047
Type: Grant
Filed: Apr 24, 2023
Date of Patent: Jun 11, 2024
Inventors: Xiaolun Qian (Beijing), Chuanlong Ma (Beijing), Yang Zhao (Beijing), Zesheng Xi (Beijing)
Primary Examiner: Rhea Shields
Application Number: 35/517,393
Type: Grant
Filed: Apr 24, 2023
Date of Patent: Jun 11, 2024
Inventors: Xiaolun Qian (Beijing), Chuanlong Ma (Beijing), Yang Zhao (Beijing), Zesheng Xi (Beijing)
Primary Examiner: Rhea Shields
Application Number: 35/517,393
Classifications
Current U.S. Class:
Pulmonary (38) (D24/164)
