Ex parte CHARLTON et al. - Page 5




          Appeal No. 1996-0783                                       Page 5           
          Application No. 08/102,297                                                  

               All of the appealed apparatus and method claims require a              
          device for detecting an analyte that includes a base portion,               
          a cover portion, and a separation matrix that is "vertically                
          adjacent", "compressed to" and "coincident with" a detection                
          means (claims 1, 16, and 19).  The degree of compression of                 
          the separation matrix and detection means is required to be                 
          between 14-43 percent by volume.  Moreover, the appealed                    
          claims require a cover portion aperture cross-sectional area                
          that is less than 90 percent of the separation matrix cross-                
          sectional area.                                                             
               The examiner acknowledges that neither of the relied upon              
          primary references (Ertinghausen nor Charlton) discloses the                
          compression and cross-sectional area limitations of the                     
          claimed                                                                     
          subject matter (answer, pages 3-5).  According to the                       
          examiner, however, it would have been obvious to utilize the                
          claimed compression and aperture size in either of the applied              
          Charlton or Ertinghausen references since such a modification               
          would have been suggested as an optimization of result                      
          effective variables.                                                        










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