Ex Parte ALLEN 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                   for publication and is not binding precedent of the Board.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. 13         
                       UNITED STATES PATENT AND TRADEMARK OFFICE                      
                                     ____________                                     
                          BEFORE THE BOARD OF PATENT APPEALS                          
                                  AND INTERFERENCES                                   
                                     ____________                                     
                   Ex parte JOHN ALLEN, ALEC EWEN, and ROBERT GURNEY                  
                                     ____________                                     
                                 Appeal No. 1998-0277                                 
                              Application No. 08/478,009                              
                                     ____________                                     
                                       ON BRIEF                                       
                                     ____________                                     
          Before COHEN, STAAB, and BAHR, Administrative Patent Judges.                
          COHEN, Administrative Patent Judge.                                         



                                  DECISION ON APPEAL                                  


               This is an appeal from the final rejection of claims 20                
          through 25 and 29 through 33.  These claims constitute all of the           
          claims remaining in the application.                                        


               Appellants' invention pertains to a method of welding two              
          double containment pipe sections together to form a double                  
          containment pipe fitting and to a method of forming an angled,              
          butt welded joint thermoplastic coaxial pipe sections.  A basic             
          understanding of the invention can be derived from a reading of             






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