Voice masking headphone
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Description
The portions of the voice masking headphone in
Claims
The ornamental design for a voice masking headphone, as shown and described.
Referenced Cited
U.S. Patent Documents
Other references
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Patent History
Patent number: D1029788
Type: Grant
Filed: Aug 24, 2021
Date of Patent: Jun 4, 2024
Assignee: 3M Innovative Properties Company (St. Paul, MN)
Inventors: Douglas W. Fletcher (Woodbury, MN), Jason T. Lunn (Mahtomedi, MN), Gregory G. Jager (Oakdale, MN), Jacob T. Lusson (Richfield, MN), Eric O. Hemberg (Sha Tin)
Primary Examiner: Paula Allen Greene
Application Number: 29/805,033
Type: Grant
Filed: Aug 24, 2021
Date of Patent: Jun 4, 2024
Assignee: 3M Innovative Properties Company (St. Paul, MN)
Inventors: Douglas W. Fletcher (Woodbury, MN), Jason T. Lunn (Mahtomedi, MN), Gregory G. Jager (Oakdale, MN), Jacob T. Lusson (Richfield, MN), Eric O. Hemberg (Sha Tin)
Primary Examiner: Paula Allen Greene
Application Number: 29/805,033
Classifications
Current U.S. Class:
Headphone Or Headset (D14/205)