ALEXANDRIA, Va., April 15 -- United States Patent no. 12,599,209, issued on April 14, was assigned to DongGuan Casekey Industry Co. Ltd (Dongguan, China).
"Card fixation assembly for card holder and card holder" was invented by Haiyan Huang (Dongguan, China) and Youguo Zhou (Dongguan, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "A card fixation assembly for a card holder, including: a main body, a first elastic arm, a second elastic arm, a first clamping end, and a second clamping end. A first elastic arm start end and a second elastic arm start end are connected to the main body; a first elastic arm tail end is connected to the first clamping end; and a second elastic arm tail end is connected to th...