US Patent Issued to J SING on March 31 for "Sliding door roller having gear-shaped front disk" (Chinese Inventor)

ALEXANDRIA, Va., March 31 -- United States Patent no. D1,120,752, issued on March 31, was assigned to J SING LLC (Lewes, Del.).

"Sliding door roller having gear-shaped front disk" was invented by Guangsheng Zhang (Guangzhou, China).

The patent was filed on Jan. 18, 2025, under Application No. D/986,836.

*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=D1120752&OS=D1120752&RS=D1120752

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