Ex parte LAPIDUS - Page 4




          Appeal No. 95-1950                                                          
          Application No. 08/061,928                                                  

               We agree with the appellant that Mukogawa contains no                  
          teaching or suggestion of terminating the fluid signal in                   
          response to a selected change in the measured parameter as                  
          recited in clause D or for transferring the particles to an                 
          optical element for image analysis as recited in clause E of                
          the independent claims under rejection.  Concerning the clause              
          D feature, the examiner urges that the "prescribed time in                  
          Mukogawa. . . is viewed as the presently recited measured                   
          parameter" (answer, page 6).  This view is clearly erroneous                
          since the here claimed "measured parameter" is explicitly                   
          defined in clause C as "responsive to fluid flow", and                      
          Mukogawa's time parameter is plainly not so responsive.  As                 
          for the clause E feature, we cannot agree with the examiner                 
          that it would have been obvious to combine the prior art                    
          embodiment described in column 1 of Mukogawa with patentee's                
          figure 1 embodiment.  In our opinion, the appellant is correct              
          in arguing that these embodiments are alternative, and thus                 
          not combinable, mechanisms for determining water purity.                    
               In light of the foregoing, we cannot sustain the                       
          examiner's section 103 rejection of claims 1, 3 and 8 as being              
          unpatentable over Mukogawa.  Moreover, we also cannot sustain               

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