Detachable computer mouse pad surfaces in multiple sheet form

Abstract

A computer mouse pad comprises a rigid base and a plurality of paper sheets arranged in a stack and detachably fixed to the base. Each of the stacked sheet is detachably fixed to a sheet immediately below it in the stack. The sheets are provided with printed messages on upper surfaces thereof. A coating is applied to the upper surfaces of the sheets. The coated upper surfaces are resistant to being written upon, thereby preventing accumulation of carbon, graphite and ink markings, which tend to contaminate the roller ball, prevent proper mouse tracking and adversely affect curser control. When worn, the uppermost sheet is removed, thereby exposing the next sheet in the stack and its message, for use as the upper surface of the mouse pad. Timely refreshment of the upper surface is encouraged by provision of a mouse pad in which the information conveyed by successive sheet removal creates a serial effect.

What is claimed is:  
     
         1 . A computer mouse pad having a top surface that facilitates tracking of a mouse roller ball, comprising; 
 a. a rigid base;    b. a stack of paper sheets detachably fixed to said base and comprising an uppermost sheet with an upper surface forming said top surface of said mouse pad; and    c. each sheet of paper in said stack being detachably fixed to a sheet immediately below it in said stack, and having a printed message on its upper surface,    whereby said uppermost sheet is removed when worn thereby exposing the sheet immediately below it in said stack and its message for use as the upper surface of said mouse pad.    
     
     
         2 . A computer mouse pad as recited by  claim 1 , wherein said uppermost surface resists formation thereon of markings composed of material selected from the group consisting of lead, graphite and ink.  
     
     
         3 . A computer mouse pad as recited by  claim 1 , wherein each of said sheets of paper has an offset weight ranging from about 20 to 90 pounds.  
     
     
         4 . A computer mouse pad as recited by  claim 1 , wherein each of said sheets of paper has an offset weight substantially equal to about 70 pounds.  
     
     
         5 . A computer mouse pad as recited by  claim 1 , wherein each of said sheets of paper has an offset weight of at least about 70 pounds.  
     
     
         6 . A computer mouse pad as recited by  claim 1 , wherein said base is comprised of cardboard having a thickness of at least about 0.5 mm.  
     
     
         7 . A computer mouse pad as recited by  claim 1 , wherein said base is comprised of plastic having a thickness of at least about 0.25 mm.  
     
     
         8 . A computer mouse pad as recited by  claim 2 , wherein said upper surface is coated with a film composed of PVC.  
     
     
         9 . A computer mouse pad as recited by  claim 2 , wherein said upper surface is coated with a film composed of cellophane.  
     
     
         10 . A computer mouse pad as recited by  claim 2 , wherein said upper surface is coated with a film composed of an aqueous solution.  
     
     
         11 . A computer mouse pad as recited by  claim 2 , wherein said upper surface is coated with a film composed of varnish.  
     
     
         12 . A computer mouse pad as recited by  claim 2 , wherein said upper surface is coated with a film composed of a heat-set ink.  
     
     
         13 . A computer mouse pad as recited by  claim 1 , wherein said base comprises a nonskid lower surface.