Protective cover for electronic device

Abstract

A protective cover for an electronic device includes a bottom plate and a sidewall. The sidewall extends from an edge of the bottom plate. The protective cover defines a signal transmission opening, thereby exposing an antenna assembly portion of the electronic device. An inner surface of the protective cover is smooth, and an outer surface is rough.

1 . A protective cover for an electronic device, comprising:
 a bottom plate; and   a sidewall extending from an edge of the bottom plate;   wherein the protective cover defines a signal transmission opening, thereby exposing an antenna assembly portion of the electronic device.   
     
     
         2 . The protective cover of  claim 1 , wherein an inner surface of the protective cover is a smooth surface. 
     
     
         3 . The protective cover of  claim 2 , wherein an outer surface of the protective cover is a rough surface. 
     
     
         4 . The protective cover of  claim 1 , wherein the sidewall comprises a first curved plate, a second curved plate, a third curved plate, and a fourth curved plate; the first curved plate, the second curved plate, the third curved plate, and the fourth curved plate cooperatively form a substantially rectangular shape. 
     
     
         5 . The protective cover of  claim 4 , wherein the signal transmission opening is defined in the first curved plate. 
     
     
         6 . The protective cover of  claim 5 , wherein the first curved plate further defines a first access opening. 
     
     
         7 . The protective cover of  claim 6 , wherein the second curved plate defines a second access opening in an end thereof away from the first curved plate. 
     
     
         8 . The protective cover of  claim 7 , wherein the third curved plate defines a third access opening in an end thereof adjacent to the second curved plate. 
     
     
         9 . The protective cover of  claim 1 , wherein a top end of the sidewall angles inwardly to form a hooked portion. 
     
     
         10 . The protective cover of  claim 1 , wherein the protective cover is made of silicone.