Ex parte PODWALNY et al. - Page 3




          Appeal No. 95-3338                                                           
          Application 07/994,035                                                       

          screen, in the second position the cover exposing the                        
          input/output screen for use, the cover defining a window                     
          permitting a portion of the input/output screen to be viewed even            
          when the cover is in the first position.                                     


                    The examiner relies on the following references:                   
          York                     4,918,632                 Apr. 17, 1990             
          Derocher            Des. 321,865                   Nov. 26, 1991             
          Blonder                  5,103,376                 Apr.  7, 1992             
          Hawkins et al.           5,200,913                 Apr.  6, 1993             
                                                   (filed Feb. 14, 1992)               
          Moser et al. (Moser)     5,237,488                 Aug. 17, 1993             
                                                   (filed May 11, 1992)                



                    Claims 1 through 3, 8, 9, 11 through 13, 15 through 18             
          and 20 stand rejected under 35 U.S.C. 103.  The examiner advances            
          two alternate theories of obviousness, one based on Derocher,                
          alone, and the other based on the combination of York, Moser and             
          either one of Hawkins or Blonder.                                            
                    Reference is made to the brief and answer for the                  
          respective details of the positions of appellants and the                    
          examiner.                                                                    
                                       OPINION                                         
                    The burden of establishing unpatentability of a claimed            
          invention rests upon the examiner.  In re Fine, 837 F.2d 1071,               
          1074, 5 USPQ2d 1596, 1598 (Fed. Cir. 1988); In re Thorpe, 777                


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