Sound amplifier

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Description

1. Sound amplifier

1.1 : Perspective

1.2 : Front

1.3 : Back

1.4 : Bottom

1.5 : Left

1.6 : Left

1.7 : Top

The broken lines shown in the drawings represent unclaimed portions of the article and form no part of the claimed design.

Claims

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

Referenced Cited
U.S. Patent Documents
D247494 March 14, 1978 Taguchi
D248473 July 11, 1978 Hamada
D249946 October 17, 1978 Ohtomo
D252809 September 4, 1979 Bocko
D269434 June 21, 1983 Nagele
D271694 December 6, 1983 Nomura
D428872 August 1, 2000 Kizawa
D766867 September 20, 2016 Shigematsu
Other references
  • Audio-Room; “46th Years of Polish Hi-Fi: Meluzyna WST-101”; [online] ‘https://www.audior-room.net/46th-years-of-polish-hi-fi-meluzyna-wst-101’; Dated Nov. 11, 2018; Accessed Sep. 27, 2023; 3pgs. (Year: 2018).
Patent History
Patent number: D1041440
Type: Grant
Filed: Nov 16, 2022
Date of Patent: Sep 10, 2024
Assignee: UNITRA SPÓLKA Z OGRANICZONA ODPOWIEDZIALNOSCIA (Warsaw)
Inventors: Wiktor Szulfer (Warsaw), Adrian Krupowicz (Warsaw)
Primary Examiner: Keli L Hill
Application Number: 35/515,826