US Patent 7319584 Casing for notebook computer

A device and method is provided for providing a notebook computer casing whose contour and outward features can be change by the user. The device includes a main body, at least one decorative piece that can be fixed on and detached from the main body at random. The main body includes a slot, set on its rims, and a first locking part, set inside the slot, at least one decorative piece that includes a first interlocking part can be locked into position with the first locking part. The decorative pieces are to be fixed on the main body to change the contour and outward features of the computer and, meanwhile, serve as buffers protecting the computer against impact damage.