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Patent
D975670
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Priority
Jun 11 2021
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Filed
Jun 11 2021
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Issued
Jan 17 2023
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Expiry
Jan 17 2038
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Assg.orig
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Entity
unknown
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2
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12
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n/a
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The ornamental design for a headphone amplifier, as shown and described.
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FIG. 1 is a front and top perspective view of a headphone amplifier, showing my new design;
FIG. 2 is a rear and bottom perspective view thereof;
FIG. 3 is a front elevation view thereof;
FIG. 4 is a rear elevation view thereof;
FIG. 5 is a left side elevation view thereof;
FIG. 6 is a right side elevation view thereof;
FIG. 7 is a top plan view thereof; and,
FIG. 8 is a bottom plan view thereof.
The broken lines in the figures illustrate portions of the headphone amplifier that form no part of the claimed design.
He, Naiyong
Patent |
Priority |
Assignee |
Title |
D342948, |
Nov 29 1991 |
SONY CORPORATION A CORP OF JAPAN |
Combined speaker box and amplifier |
D398304, |
Nov 25 1997 |
MOTOROLA SOLUTIONS, INC |
Portable radio housing |
D412705, |
Jun 01 1998 |
Whirlwind Music Distributors, Inc. |
Combined portable microphone and speaker |
D429717, |
Jan 08 1999 |
Sony Corporation |
Speaker box |
D510338, |
May 21 2004 |
LOGITECH EUROPE S A |
Speaker controller |
D532425, |
Oct 11 2005 |
Samsung Electronics Co., Ltd. |
MP3 player |
D552076, |
Nov 03 2005 |
Vinci Brands LLC |
Combined radio tuner, remote controller and recording unit |
D683714, |
Jul 25 2012 |
OM DIGITAL SOLUTIONS CORPORATION |
Voice recording/reproducing device |
D746254, |
Jan 31 2014 |
D&M Holdings, Inc. |
Audio amplifier |
D762614, |
Jun 11 2014 |
Kabushiki Kaisha Audio-Technica |
Wireless receiver |
D773432, |
Dec 17 2014 |
Vinci Brands LLC |
Amplifier |
D952603, |
Sep 29 2020 |
|
Loudspeaker |
Date |
Maintenance Fee Events |
n/a
Date |
Maintenance Schedule |
n/a