ALEXANDRIA, Va., Feb. 12 -- United States Patent no. 12,221,751, issued on Feb. 11, was assigned to JD RUSSELL COMPANY (Utica, Mich.).
"Concrete expansion joint insert" was invented by Nicholas Danna (Tucson, Ariz.), Bradley Danna (Shelby, Mich.) and Marc Danna (Tucson, Ariz.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A concrete expansion joint insert includes a body having two ends, two longitudinal edges between the ends and two side surfaces between the longitudinal edges. The body has a length, a width and a thickness. The length is greater than the width and the width is greater than the thickness. The width and thickness correspond to dimensions of the ends of the body. The length and the thickness...