Sound amplifier

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Description

1. Sound amplifier

1.1 : Perspective

1.2 : Front

1.3 : Top

1.4 : Back

1.5 : Left

1.6 : Right

1.7 : Bottom

1.8 : Perspective

The broken lines represent environmental structure and form no part of the claimed design.

Claims

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

Referenced Cited
U.S. Patent Documents
D681606 May 7, 2013 Nishii
D710821 August 12, 2014 Marklund
D722588 February 17, 2015 Boyd
D761231 July 12, 2016 Kim
D763229 August 9, 2016 Yagi
D768603 October 11, 2016 Kim
D774491 December 20, 2016 Kim
D778259 February 7, 2017 Bouroullec
D785596 May 2, 2017 Lewis
D805498 December 19, 2017 Jeon
D808352 January 23, 2018 Won
D816062 April 24, 2018 Park
D817308 May 8, 2018 Sugiura
D817926 May 15, 2018 Warden
Patent History
Patent number: D868021
Type: Grant
Filed: Jan 2, 2017
Date of Patent: Nov 26, 2019
Assignee: Sennheiser electronic GmbH & Co. KG (Wedemark)
Inventor: Ralf Kittmann (Zurich)
Primary Examiner: Melanie H Tung
Assistant Examiner: Bao-Yen T Nguyen
Application Number: 35/503,292