ALEXANDRIA, Va., Sept. 3 -- United States Patent no. 12,404,697, issued on Sept. 2, was assigned to CMECH (GUANGZHOU) LTD. (Guangdong, China).
"Latch bolt installation structure and door lock using such structure" was invented by Jia Sen Qiu (Guangdong, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention relates to the field of lockset and provides a lock body a latch bolt installation structure comprising a latch bolt body having a driving part and a latch part, wherein the latch part is detachably connected with the driving part. The latch part is configured with a male part inserting into a female part on the driving part; the female part comprises a first installation position and ...