ALEXANDRIA, Va., March 31 -- United States Patent no. D1,120,793, issued on March 31, was assigned to Shenzhen Lingdu Auto Electronics Co. Ltd. (Shenzhen, China).
"Doorbell" was invented by Shuhua Liang (Taoyuan, Taiwan), Guogui Chen (Lianjiang, China) and Bin Yang (Shenzhen, China).
The patent was filed on Nov. 30, 2023, under Application No. D/918,854.
*For further information, including images, charts and tables, please visit: http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO2&Sect2=HITOFF&p=1&u=%2Fnetahtml%2FPTO%2Fsearch-bool.html&r=1&f=G&l=50&co1=AND&d=PTXT&s1=D1120793&OS=D1120793&RS=D1120793
Disclaimer: Curated by HT Syndication....