|
The ornamental design for audio amplifier, as shown and described. |
|||||||||||||||||
FIG. 1 is a top, front and right side perspective view of an audio amplifier showing my new design;
FIG. 2 is a front elevational view thereof.
FIG. 3 is a rear elevational view thereof.
FIG. 4 is a left side elevational view thereof.
FIG. 5 is a right side elevational view thereof.
FIG. 6 is a top plan view thereof; and
FIG. 7 is a bottom plan view thereof.
| Patent | Priority | Assignee | Title |
| D460435, | Jun 21 2001 | Bose Corporation | Music center |
| D519980, | Nov 09 2001 | Milwaukee Electric Tool Corporation | Base portion for a radio |
| D570821, | Jun 30 2006 | LOGITECH EUROPE S A , | Tube microphone amplifier |
| Patent | Priority | Assignee | Title |
| D247566, | Feb 19 1976 | High-fidelity receiver cabinet | |
| D253823, | Apr 26 1977 | Braun Aktiengesellschaft | Combined tuner and amplifier |
| D257533, | May 22 1978 | Discovision Associates | Video disk player |
| Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
| Jul 15 1989 | TANAKA, KENSHIRO | Nakamichi Corporation | ASSIGNMENT OF ASSIGNORS INTEREST | 005114 | /0193 | |
| Aug 10 1989 | Nakamichi Corporation | (assignment on the face of the patent) | / |
| Date | Maintenance Fee Events |
| Date | Maintenance Schedule |