US Patent 7090275 Tailgate cargo box

A cargo box having a folding first side that is configured to be placed within the rear portion of a pickup truck, and to be held against the tailgate of the pickup while the tailgate is closed, thus preventing the device from moving too far forward when the tailgate is closed. This device is also configured to be rolled along the bed of the pickup and rolled out of the rear of the pickup over the top of the tailgate when the tailgate is open and placed in a downward position. The device contains a stopping device that prevents the device from being pulled too far forward out of the rear portion of the pickup truck, or being pushed too far into the bed portion of the pickup truck.