ALEXANDRIA, Va., May 26 -- United States Patent no. 12,636,569, issued on May 26.
"Skateboard and skateboard trucks" was invented by Mark Slagter (San Jose, Costa Rica).
According to the abstract* released by the U.S. Patent & Trademark Office: "A truck suitable is described herein that is suitable for attachment to a skateboard, the truck including: a kingpin having a shaft with a first end portion and a second end portion; an elastic bushing having a hub with a plurality of outwardly-extending spokes, the hub having an opening for receiving the shaft of the kingpin; a baseplate having an opening for receiving the first end portion of the kingpin, the baseplate; a first undulating surface fixed relative to the baseplate and facing the el...