Audio amplifier
Description
Differently stippled areas on the front face and the knob fronts indicate different pastel color surfaces, and while shown intermittently is understood to be extended uniformly across the entire surface upon which it is applied.
Claims
The ornamental design for an audio amplifier, as shown and described.
Referenced Cited
U.S. Patent Documents
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D253752 | December 25, 1979 | Dilgard, Jr. |
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D259789 | July 7, 1981 | Watanabe |
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D669992 | October 30, 2012 | Schafer et al. |
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D682252 | May 14, 2013 | Behringer |
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D742352 | November 3, 2015 | Nardin |
D746254 | December 29, 2015 | Ito |
D776078 | January 10, 2017 | Williamson |
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D813189 | March 20, 2018 | Lundgard |
D820798 | June 19, 2018 | Yurusov |
D844578 | April 2, 2019 | Seflic |
D856299 | August 13, 2019 | Kuramoto |
D860959 | September 24, 2019 | Seflic |
Patent History
Patent number: D871364
Type: Grant
Filed: Jul 12, 2019
Date of Patent: Dec 31, 2019
Inventor: Eric J. Lundgard (Midland, MI)
Primary Examiner: Keli L Hill
Application Number: 29/697,980
Type: Grant
Filed: Jul 12, 2019
Date of Patent: Dec 31, 2019
Inventor: Eric J. Lundgard (Midland, MI)
Primary Examiner: Keli L Hill
Application Number: 29/697,980
Classifications
Current U.S. Class:
Radio Receiver, Tuner Or Amplifier, Or Housing Therefor (D14/188)