Ex parte VAN ENGELSHOVEN et al. - Page 8

          Appeal No. 1998-0335                                                        
          Application 08/518,061                                                      

          Matsuda principal lens system of the Japanese abstract means                
          the same thing as appellants’ main lens system.  The main lens              
          system of these electron gun display devices are known to                   
          include an intermediate electrode as well as other electrodes               
          [see background of the invention, page 1 of the                             
          specification].  Therefore, we agree with the examiner that                 
          the teachings of Matsuda would apply to any of the electrodes               
          making up the main lens system.                                             

          The fact that the preferred embodiment of Matsuda uses                      
          plates which are not all identical does not diminish the                    
          relevant teachings of Matsuda.  Matsuda is cited only for the               
          teaching that multiple laminated thin plates can improve                    
          focusing characteristics over a single thick plate.  Matsuda                
          also teaches that the thin laminated plates are easier to                   
          manufacture than conventional thick electrodes [translation,                
          pages 2-3].  Matsuda would have suggested to the artisan that               
          any conventional thick plate electrode might be improved by                 
          using multiple laminated thin plates in addition to being                   
          easier to manufacture.  Therefore, it would have been obvious               
          to replace either of the thick plate intermediate electrodes                

Page:  Previous  1  2  3  4  5  6  7  8  9  10  11  12  13  Next 

Last modified: November 3, 2007