ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,449,864, issued on Oct. 21, was assigned to HANWIT PRECISION INDUSTRIES LTD. (New Taipei, Taiwan).
"Two-stage fixing device" was invented by Ying-Chih Tseng (New Taipei, Taiwan), Ming-De Wu (New Taipei, Taiwan) and Ching-Kai Chang (New Taipei, Taiwan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A two-stage fixing device includes a seat body mounted on a preset circuit board, and a positioning fastener having a base positioned on the seat body. The base has an integrated first positioning body and second positioning body, which are used for the preset first interface card and preset second interface card plugged into respective preset electrical connec...