Audio signal amplifier

- Yamaha Corporation
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Description

FIG. 1 is a perspective view of the top, front and right side of an audio signal amplifier showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a front elevational view thereof; and,

FIG. 4 is a bottom plan view thereof.

The dot-dash-dot broken lines represent the boundary of the claim. The evenly spaced broken lines show portions of an audio signal amplifier that form no part of the claimed design.

Claims

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

Referenced Cited
U.S. Patent Documents
D253889 January 8, 1980 Taguchi et al.
D254373 March 4, 1980 Ohta
D263584 March 30, 1982 Castagna et al.
D281418 November 19, 1985 Lewis et al.
D453156 January 29, 2002 Le Thellec
D462951 September 17, 2002 Storti et al.
D521991 May 30, 2006 Storti et al.
D557678 December 18, 2007 Bey et al.
D563952 March 11, 2008 Yamamoto et al.
Patent History
Patent number: D585438
Type: Grant
Filed: Feb 8, 2008
Date of Patent: Jan 27, 2009
Assignee: Yamaha Corporation (Hamamatsu-shi)
Inventor: Kao Nimura (Hamamatsu)
Primary Examiner: Robert M Spear
Assistant Examiner: Katrina A Kile
Attorney: Sughrue Mion, PLLC
Application Number: 29/303,430
Classifications
Current U.S. Class: Front Panel Or Dial (D14/257)