US Patent 7363750 Sliding vehicle door with a moveable window assembly

A sliding door for vehicles including a space frame formed from a U-shaped extruded aluminum tube and a crossbeam to which inner and outer aluminum door panels are attached. Hardware for operation of the door is mounted on the exposed inside surface of the door. The overall weight of the door is about 20 pounds and the door is about 35 mm thick. A movable window assembly for such a door and a method of making are also disclosed.