Ex Parte WELSH et al - Page 1

               The opinion in support of the decision being entered                   
               today was not written for publication and is not                       
               binding precedent of the Board.                                        
                                                               Paper No. 21           

                     UNITED STATES PATENT AND TRADEMARK OFFICE                        
                         BEFORE THE BOARD OF PATENT APPEALS                           
                                  AND INTERFERENCES                                   
                  Ex parte WILLIAM A. WELSH and STEPHEN R. SCHMIDT                    
                                Appeal No. 1997-1791                                  
                             Application No. 08/485,304                               
                                      ON BRIEF                                        

          Before KIMLIN, PAK and KRATZ, Administrative Patent Judges.                 
          KIMLIN, Administrative Patent Judge.                                        

                                 DECISION ON APPEAL                                   
               This is an appeal from the final rejection of claims 1-5 and           
          13-16, all the claims remaining in the present application.                 
          Claim 1 is illustrative:                                                    
               1.  A flatting agent comprising an inorganic hydrogel having           
          a pore volume of at least 1.0 ml/g, a volatiles content of at               
          least 40 wt.%, an average particle size in the range of 1 to 10             
          microns and a particle size distribution such that when the                 
          inorganic hydrogel flatting agent is dispersed in a coating                 
          vehicle, the fineness of grind is at least 4.75 on a Hegman                 


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