Ex Parte Karas 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                     publication and is not binding precedent of the Board.           


                       UNITED STATES PATENT AND TRADEMARK OFFICE                      
                                     ____________                                     
                          BEFORE THE BOARD OF PATENT APPEALS                          
                                   AND INTERFERENCES                                  
                                     ____________                                     
                             Ex parte LAWRENCE J. KARAS,                              
                                  LAWRENCE M. CADELA                                  
                                  and ANDREW P. KAHN                                  
                                     ____________                                     
                                 Appeal No. 2004-2019                                 
                              Application No. 10/301,441                              
                                     ____________                                     
                                       ON BRIEF                                       
                                     ____________                                     
          Before PAK, KRATZ and DELMENDO, Administrative Patent Judges.               
          KRATZ, Administrative Patent Judge.                                         


                                  DECISION ON APPEAL                                  
               This is a decision on appeal from the examiner's final                 
          rejection of claims 1-3, which are all of the claims pending in             
          this application.                                                           
                                     BACKGROUND                                       
               Appellants' invention relates to a method of separating                
          impurities from an MTBE stream.  An understanding of the                    
          invention can be derived from a reading of exemplary claim 1,               
          which is reproduced below.                                                  
                    1. The method of separating impurities from a MTBE                
               process stream feed comprised mainly of MTBE and                       






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