Sound amplifier
Description
The interior structure behind the speaker grill forms no part of the claimed design and is not seeking to be protected.
All of the broken lines shown in the drawings represent unclaimed portions of the sound amplifier 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
Other references
D499714 | December 14, 2004 | Shomali |
D707651 | June 24, 2014 | Tsai |
D719130 | December 9, 2014 | Crane |
D764439 | August 23, 2016 | Kim |
D817306 | May 8, 2018 | Jang |
D830343 | October 9, 2018 | Fustino |
D893445 | August 18, 2020 | Wall |
D894161 | August 25, 2020 | Ye |
D923603 | June 29, 2021 | Ming |
D924834 | July 13, 2021 | DeLuna |
D926728 | August 3, 2021 | He |
- Amazon.com; SHIDU; ‘SHIDU Personal Voice Amplifier . . . ’; [online] ‘https://www.amazon.com/dp/b07g5clcwc’; dated Jan. 7, 2017; accessed Oct. 19, 2020; 6pgs. (Year: 2017).
Patent History
Patent number: D933038
Type: Grant
Filed: Apr 21, 2019
Date of Patent: Oct 12, 2021
Assignee: SHANGHAI NORWll TECHNOLOGY CO., LTD. (Shanghai)
Inventor: Yongyan Huang (Shanghai)
Primary Examiner: Keli L Hill
Application Number: 29/688,388
Type: Grant
Filed: Apr 21, 2019
Date of Patent: Oct 12, 2021
Assignee: SHANGHAI NORWll TECHNOLOGY CO., LTD. (Shanghai)
Inventor: Yongyan Huang (Shanghai)
Primary Examiner: Keli L Hill
Application Number: 29/688,388