ALEXANDRIA, Va., Feb. 17 -- United States Patent no. 12,553,255, issued on Feb. 17, was assigned to ARDISAM INC. (Cumberland, Wis.).
"Portable shelters" was invented by Michael Furseth (Cumberland, Wis.), Chuck Librande (Rice Lake, Wis.) and Scott Nickell (Cumberland, Wis.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A portable shelter includes a frame structure with a plurality of pole structures. In some embodiments, a pole structure includes telescopically movable pole portions and a spring-biasing mechanism configured to bias one pole portion away from the other. In some embodiments, a center hub structure of the portable shelter includes a locking mechanism for engaging one of the pole portions to int...