Headphone amplifier

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Description

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.

Claims

The ornamental design for a headphone amplifier, as shown and described.

Referenced Cited
U.S. Patent Documents
D342948 January 4, 1994 Furui
D398304 September 15, 1998 Murray
D412705 August 10, 1999 Laiacona
D429717 August 22, 2000 Kizawa
D510338 October 4, 2005 Brimhall
D532425 November 21, 2006 Kim
D552076 October 2, 2007 Griffin
D683714 June 4, 2013 Ito
D746254 December 29, 2015 Ito
D762614 August 2, 2016 Matsui
D773432 December 6, 2016 Rowan
D952603 May 24, 2022 Wen
Patent History
Patent number: D975670
Type: Grant
Filed: Jun 11, 2021
Date of Patent: Jan 17, 2023
Inventor: Naiyong He (Guangzhou)
Primary Examiner: Keli L Hill
Application Number: 29/794,291