Slidable window assembly with vent screen

A window assembly for a motor vehicle comprising:

• a pair of stationary windows, said stationary windows being spaced apart and having side portions defining an opening therebetween, said opening adapted to provide communication between an interior passenger compartment of the vehicle and the exterior of the vehicle;
• a pair of spaced apart guide rails, said guide rails horizontally extending across said opening and each including portions defining a channel, said channel of one of said guide rails counter-facing said channel of the other of said guide rails, said guide rails extending between first ends proximate to one side portion and second ends positioned beyond the other side portion;
• a moveable window slidingly received within said channels of said guide rails, said moveable window being moveable in a lateral direction to selectively cover said opening in a closed position with said moveable window nearest said first ends and selectively uncover said opening in an open position with said moveable window nearest said second ends;
• a vent screen having a retraction device and a screen panel, said retraction device being supported by and mounted to and between said first ends of said guide rails and connected to a first end of said screen panel and adapted to automatically spool said screen panel, said screen panel further including a second end attached to said moveable window;
• and
• whereby displacement of said moveable window from said closed position to said open position causes said screen panel to be extended over said opening, and whereby displacement of said moveable window to a closed position allows said screen panel to be spooled by said retraction device.