ALEXANDRIA, Va., Dec. 2 -- United States Patent no. D1,103,813, issued on Dec. 2.

"Combination smoke and carbon monoxide detector" was invented by Guangzhi He (Shenzhen, China).

The patent was filed on Oct. 23, 2024, under Application No. D/969,747.

*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=D1103813&OS=D1103813&RS=D1103813

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