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United States Patent D446,499
Andre ,   et al. August 14, 2001

Power amplifier


The ornamental design for a power amplifier, as shown and described.
Inventors: Andre; Bartley K. (Menlo Park, CA), Coster; Daniel J. (San Francisco, CA), De Iuliis; Daniele (San Francisco, CA), Howarth; Richard P. (San Francisco, CA), Ive; Jonathan P. (San Francisco, CA), Kerr; Duncan Robert (San Francisco, CA), Rohrbach; Matthew Dean (San Francisco, CA), Satzger; Douglas B. (San Carlos, CA), Seid; Calvin Q. (Palo Alto, CA), Stringer; Christopher J. (Pacifica, CA), Whang; Eugene Anthony (San Francisco, CA)
Assignee: Apple Computer, Inc. (Cupertino, CA)
Appl. No.: D/126,456
Filed: July 17, 2000

Current U.S. Class: D13/110
Current International Class: 1302
Field of Search: D13/110 D14/188 307/150 330/65,250-311

References Cited

U.S. Patent Documents
D102203 December 1936 Comstock
D420665 February 2000 Rosenberg et al.
3727098 April 1973 Crapuchettes
3833821 September 1974 Weaver
4037168 July 1977 Katoh et al.
4084218 April 1978 Kenney
4484158 November 1984 Roberts et al.
5568006 October 1996 Luff et al.
5898256 April 1999 Ide et al.
Primary Examiner: Sincavage; Joel
Attorney, Agent or Firm: Liu; Richard C.


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.

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