ALEXANDRIA, Va., Sept. 8 -- United States Patent no. 12,731,509, issued on Sept. 8, was assigned to JAST Gifts Shenzhen Co. Ltd. (Shenzhen City, China).
"3-d pop-up cards with parallel base structure" was invented by Jen-Lin Chen (Cupertino, Calif.).
According to the abstract* released by the U.S. Patent & Trademark Office: "The invention relates to a 3D card having a foldable base card (1) with an inner side and an outer side, the base card (1) comprising two sections (2, 3) which are reversibly transferable from a folded state to an unfolded state along a fold (17), and having a foldable base (6, 6'), which is reversibly transferable from a flat state to a three-dimensional state, and with foldable figure elements (10, 10') which are re...