US Patent Issued to The Boeing on Oct. 7 for "Retroreflective traffic sign and process and apparatus for manufacturing same" (Illinois Inventor)

ALEXANDRIA, Va., Oct. 8 -- United States Patent no. 12,436,323, issued on Oct. 7, was assigned to The Boeing Co. (Arlington, Va.).

"Retroreflective traffic sign and process and apparatus for manufacturing same" was invented by Robert M. Pricone (Libertyville, Ill.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A retroreflective sign comprising a rigid substrate with a pattern of cell walls formed of a polyurethane adhesive or two-part polyurea adhesive, and a polymeric sheet having a front face and a rear face, the rear face facing the substrate, the rear face comprising microprismatic reflective elements is disclosed. The polymeric sheet is adhered directly to the cell walls formed of the polyurethane adhes...