Patent attributes
An extensible trailer has a rear frame supporting a front cargo deck, and a front frame supporting a front cargo deck. The rear frame has a yoke fixed to it for the front frame to slide in and out of, between collapsed and extended extremes. When collapsing the trailer, the front frame slides into the yoke as the front cargo deck rides up over a front edge of the rear cargo deck, until it lands on top of the rear cargo deck, where it stays all the while the trailer is in the collapsed position. When extending the trailer, the front frame slides out from the yoke as the front cargo deck slides back over the rear cargo deck's front edge, until it lands on top of the front frame, where it stays all the while the trailer is in the extended position.
