White noise sleep aid machine
Description
The broken lines shown in the drawings depict portions of the white noise sleep aid machine in which the design is embodied that form no part of the claimed design.
Claims
The ornamental design for a white noise sleep aid machine, as shown and described.
Referenced Cited
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Foreign Patent Documents
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Patent History
Patent number: D991910
Type: Grant
Filed: Jan 9, 2022
Date of Patent: Jul 11, 2023
Inventors: Min Mao (Beijing), Wei Li (Beijing)
Primary Examiner: Marie D. Fast Horse
Assistant Examiner: Josiah D. Parsons
Application Number: 29/791,350
Type: Grant
Filed: Jan 9, 2022
Date of Patent: Jul 11, 2023
Inventors: Min Mao (Beijing), Wei Li (Beijing)
Primary Examiner: Marie D. Fast Horse
Assistant Examiner: Josiah D. Parsons
Application Number: 29/791,350
Classifications