ALEXANDRIA, Va., June 16 -- United States Patent no. 12,304,439, issued on May 20, was assigned to HORIZON GLOBAL AMERICAS INC. (Plymouth, Mich.).
"Jack assembly" was invented by Kawa-She Quoen Okerlund (Wittenberg, Wis.) and Frank Drake (Wausau, Wis.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A jack assembly is shown and describe. The jack assembly may include a first tube having first and second end portions and a central portion between the first and second end portions, and a second tube positioned within the first tube and movable with respect to the first tube. The jack assembly may also include an expanded portion on the first tube, the expanded portion having a larger inner diameter than an inner...