ALEXANDRIA, Va., Jan. 13 -- United States Patent no. 12,522,991, issued on Jan. 13, was assigned to Plastic Safety Systems Inc. (Cleveland).
"Portable collapsible barricade" was invented by Charles M. Mettler (Perry, Ohio), Gregory H. Brown (Chagrin Falls, Ohio), Stephen A. Speaker (Fairview Park, Ohio) and Edgardo Santiago-Diaz (Mary Esther, Fla.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A portable barricade includes at least three legs that are operably coupled together to permit movement relative to each other between a collapsed state and an expanded state. The barricade is configured such that when in the collapsed state, the at least three legs are arranged with at least one of the legs stacked be...