Ex parte OH - 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                    for publication and is not binding precedent of the Board.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. 46         

                       UNITED STATES PATENT AND TRADEMARK OFFICE                      
                                     ____________                                     
                          BEFORE THE BOARD OF PATENT APPEALS                          
                                   AND INTERFERENCES                                  
                                     ____________                                     
                                 Ex parte SEUNG-HUN OH                                
                                     ____________                                     
                                 Appeal No. 1998-2552                                 
                              Application No. 08/292,977                              
                                     ____________                                     
                                       ON BRIEF                                       
                                     ____________                                     
          Before OWENS, WALTZ, and TIMM, Administrative Patent Judges.                
          WALTZ, Administrative Patent Judge.                                         


               DECISION ON APPEAL                                                     
               This is a decision on an appeal under 35 U.S.C. § 134 from             
          the examiner’s refusal to allow claims 18 through 20, 31, 33, 35            
          and 36 as amended subsequent to the final rejection (see the                
          amendment dated Nov. 6, 1997, Paper No. 36, entered as per the              
          Advisory Action dated Nov. 26, 1997, Paper No. 37).                         
               According to appellant, the invention is directed to a                 
          method of producing an optical fiber secondary preform by                   
          collapsing an over-cladding tube on an optical fiber primary                






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