Audio amplifier

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Description

FIG. 1 is an isometric view of the audio amplifier of the present invention;

FIG. 2 is a front view thereof;

FIG. 3 is a left-side view thereof;

FIG. 4 is a right-side view thereof; and,

FIG. 5 is a top plan view thereof.

Differently stippled areas on the front face and the knob fronts indicate different pastel color surfaces, and while shown intermittently is understood to be extended uniformly across the entire surface upon which it is applied.

Claims

The ornamental design for an audio amplifier, as shown and described.

Referenced Cited
U.S. Patent Documents
D250025 October 24, 1978 Stout
D253752 December 25, 1979 Dilgard, Jr.
D259565 June 16, 1981 Watanabe
D259789 July 7, 1981 Watanabe
D315722 March 26, 1991 Imamura
D598004 August 11, 2009 Lam
D662910 July 3, 2012 Warden
D669992 October 30, 2012 Schafer et al.
D678863 March 26, 2013 Inada
D682252 May 14, 2013 Behringer
D729762 May 19, 2015 Hu et al.
D742352 November 3, 2015 Nardin
D746254 December 29, 2015 Ito
D776078 January 10, 2017 Williamson
D810044 February 13, 2018 Ohmachi
D813189 March 20, 2018 Lundgard
D820798 June 19, 2018 Yurusov
D844578 April 2, 2019 Seflic
D856299 August 13, 2019 Kuramoto
D860959 September 24, 2019 Seflic
Patent History
Patent number: D871364
Type: Grant
Filed: Jul 12, 2019
Date of Patent: Dec 31, 2019
Inventor: Eric J. Lundgard (Midland, MI)
Primary Examiner: Keli L Hill
Application Number: 29/697,980