Ex parte PURVIS et al. - Page 13




          Appeal No. 1997-0218                                                        
          Application No. 08/182,757                                                  

               If the knowledge is of such notorious character that                   
               official notice can be taken, it is sufficient so to                   
               state. . . .  If the applicant traverses such an                       
               assertion the examiner should cite a reference in                      
               support of his or her position.                                        
               (2) Upon return of this application to the jurisdiction                
          of the examiner, the examiner is to indicate whether the                    
          rejection of claims 50, 51 and 66 will be maintained or                     
          withdrawn in view of appellants' traverse.  In the event that               
          the rejection is maintained, the examiner is to specify                     
          whether the conclusion of obviousness is based on facts within              
          the personal knowledge of the examiner or facts of which the                
          examiner has taken official notice and respond to appellants'               
          traverse in the appropriate manner, i.e., by affidavit or                   
          citation to a reference(s), respectively.                                   
              E.   Claims 77 and 78                                                  
               Claim 77 is directed to a laminated glazing unit                       
          comprising a plasticized polyvinyl chloride film and a layer                
          of an ultraviolet radiation absorbing material disposed                     
          between two glass sheets.  Claim 78 further specifies that the              






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