ALEXANDRIA, Va., Feb. 3 -- United States Patent no. 12,539,720, issued on Feb. 3, was assigned to Continental Reifen Deutschland GmbH (Hannover, Germany).
"Utility-vehicle tyre" was invented by Florian Kristen (Burgwedel, Germany) and Andre Lutz (Hannover, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "The invention relates to a commercial vehicle tire which is cold-retreadable and comprises sidewalls (5), belt plies (2a) and a profiled tread (1) with shoulder flanks (8a) located outside the ground contact area and running to the sidewalls (5), wherein a buffing indicator (9, 9', 9") for indicating the buffing depth is provided on at least one shoulder flank (8a), running around in the circumferentia...