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The ornamental design for a headset amplifier, as shown and described.
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FIG. 1 illustrates a perspective view of a headset amplifier;
FIG. 2 illustrates a front view thereof;
FIG. 3 illustrates a back view thereof;
FIG. 4 illustrates a right side view thereof;
FIG. 5 illustrates a left side view thereof;
FIG. 6 illustrates a top view thereof; and,
FIG. 7 illustrates a bottom view thereof.
Jones, Jeffrey S., Schmidt, Peter, Magnasco, John, Espinola, Paul, Thiel, Ron Van
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| Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
| May 17 2002 | Hello Direct, Inc. | (assignment on the face of the patent) | / | |||
| Feb 25 2003 | VAN THIEL, RON | HELLO DIRECT, INC | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 015038 | /0695 | |
| Mar 01 2003 | SCHMIDT, PETER | HELLO DIRECT, INC | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 015038 | /0695 | |
| Mar 17 2003 | MAGNASCO, JOHN | HELLO DIRECT, INC | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 015038 | /0695 |
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