Patent ID: 8613992

Claim:
A protective cover for an electronic device, comprising: a leather layer comprising an outside surface and an bottom surface; and a backing layer, integrating with the bottom surface of the leather layer, wherein the backing layer comprises: an upper adhesive layer attached to the bottom surface of the leather layer, wherein the upper adhesive layer is acrylic-base adhesive and has a value of bonding strength greater than 1.5 Kg/square inch and smaller than 2 Kg/square inch; a middle substrate attached to a bottom surface of the upper adhesive, wherein the middle substrate is sprayed with surface-bonding agent on an upper surface and a lower surface thereof, and wherein the middle substrate is made of polyethylene terephthalate and has a thickness between 0.05 mm to 0.1 mm; and a lower adhesive layer attached to a bottom surface of the middle substrate for adhering onto a surface of the electronic device, wherein the lower adhesive layer is silicon-base adhesive and has a value of bonding strength greater than 0.5 Kg/square inch and smaller than 1 Kg/square inch.