Piezoelectric buzzer
Description
The broken line showing is included for the purpose of illustrating portions of the “article” and forms no part of the claimed design.
Claims
The ornamental design for a piezoelectric buzzer, as shown and described.
Referenced Cited
U.S. Patent Documents
D254727 | April 15, 1980 | Mitumori |
D254728 | April 15, 1980 | Mitumori |
D254729 | April 15, 1980 | Mitumori |
D254730 | April 15, 1980 | Mitumori |
D254731 | April 15, 1980 | Mitumori |
D389421 | January 20, 1998 | Fushimi |
D429473 | August 15, 2000 | Watanabe |
D430813 | September 12, 2000 | Watanabe |
D431791 | October 10, 2000 | Watanabe |
D558080 | December 25, 2007 | Kodama |
D771021 | November 8, 2016 | Matsunaga |
D804347 | December 5, 2017 | Satoh |
Patent History
Patent number: D946441
Type: Grant
Filed: Sep 26, 2019
Date of Patent: Mar 22, 2022
Assignee: NINGBO KEPO ELECTRONICS CO., LTD. (Ningbo)
Inventor: Huisheng Chen (Ningbo)
Primary Examiner: George D. Kirschbaum
Application Number: 29/707,187
Type: Grant
Filed: Sep 26, 2019
Date of Patent: Mar 22, 2022
Assignee: NINGBO KEPO ELECTRONICS CO., LTD. (Ningbo)
Inventor: Huisheng Chen (Ningbo)
Primary Examiner: George D. Kirschbaum
Application Number: 29/707,187
Classifications
Current U.S. Class:
Aural, I.e., Audible (D10/116.1)