ALEXANDRIA, Va., Dec. 31 -- United States Patent no. 12,509,941, issued on Dec. 30, was assigned to Carlson Pet Products Inc. (Longboat Key, Fla.).
"Small gate within big gate within barrier" was invented by Mark A. Flannery (Longboat Key, Fla.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A gate within a gate within a barrier. A first, relatively small gate is engaged within a second, relatively large gate, which is engaged in a barrier for extending across a passageway of a residence. The relatively large gate can be closed to, for example, minimize access of toddlers to the passageway, while the relatively small gate can be opened to, for example, maximize access of small dogs to the passageway. One exam...