Power amplifier

- Apple
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FIG. 1 is a perspective view of a power amplifier;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a top view thereof;

FIG. 4 is a side view thereof;

FIG. 5 is a bottom view thereof;

FIG. 6 is a rear view thereof;

FIG. 7 is a perspective view of another embodiment of the present invention; and,

FIG. 8 is a side elevational view of the embodiment shown in FIG. 7.

The broken lines throughout the drawing figures are included for the purpose of illustrating portions of the amplifier that form no part of the claimed design.


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

Referenced Cited

U.S. Patent Documents

D102203 December 1936 Comstock
D420665 February 15, 2000 Rosenberg et al.
3727098 April 1973 Crapuchettes
3833821 September 1974 Weaver
4037168 July 19, 1977 Katoh et al.
4084218 April 11, 1978 Kenney
4484158 November 20, 1984 Roberts et al.
5568006 October 22, 1996 Luff et al.
5898256 April 27, 1999 Ide et al.

Patent History

Patent number: D446499
Type: Grant
Filed: Jul 17, 2000
Date of Patent: Aug 14, 2001
Assignee: Apple Computer, Inc. (Cupertino, CA)
Inventors: Bartley K. Andre (Menlo Park, CA), Daniel J. Coster (San Francisco, CA), Daniele De Iuliis (San Francisco, CA), Richard P. Howarth (San Francisco, CA), Jonathan P. Ive (San Francisco, CA), Duncan Robert Kerr (San Francisco, CA), Matthew Dean Rohrbach (San Francisco, CA), Douglas B. Satzger (San Carlos, CA), Calvin Q. Seid (Palo Alto, CA), Christopher J. Stringer (Pacifica, CA), Eugene Anthony Whang (San Francisco, CA)
Primary Examiner: Joel Sincavage
Attorney, Agent or Law Firm: Richard C. Liu
Application Number: 29/126,456


Current U.S. Class: Transformer, Rectifier Or Casing Therefor (3) (D13/110)
International Classification: 1302;