ALEXANDRIA, Va., Dec. 9 -- United States Patent no. 12,492,721, issued on Dec. 9.
"Leveling fastener with expandable rivet" was invented by Juan Cristobal Oropeza (Tampa, Fla.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A leveling fastener for adjustably securing a first member to a second member. The leveling fastener includes a cylindrical shank body having a fastener head disposed on a first end and includes a threaded portion having fastener threads extending from a fastener tip to a mid-portion of the cylindrical shank body. The cylindrical shank body includes a leveling portion extending between the fastener head and the threaded portion and a central channel extending axially along a central axis o...