Ex parte C.A. BUFFINGTON, et al. - Page 5

                Appeal No. 96-3544                                                                                                            
                Application No. 08/296,856                                                                                                    

                "the interior wall of the insertion end of the tube contoured                                                                 
                outwardly from the insertion end axis, forming an angle with the                                                              
                axis less than 90 degrees to form a flared end" is met by Heyman.                                                             

                         It is axiomatic that, in proceedings before the PTO, claims                                                          
                in an application are to be given their broadest reasonable                                                                   
                interpretation consistent with the specification, and that claim                                                              
                language should be read in light of the specification as it would                                                             
                be interpreted by one of ordinary skill in the art.  In re Sneed,                                                             
                710 F.2d 1544, 1548, 218 USPQ 385, 388 (Fed. Cir. 1983).                                                                      
                Moreover, limitations are not to be read into the claims from the                                                             
                specification.  In re Zletz, 893 F.2d 319, 321, 13 USPQ2d 1320,                                                               
                1322 (Fed. Cir. 1989).                                                                                                        

                                 After reviewing the disclosure  of the application and2                                                          
                the common definition of the word "end ," we find that we are in3                                                             
                agreement with the appellants that the broadest reasonable                                                                    
                interpretation consistent with the specification of the phrase                                                                

                         2See Figure 1 and page 6, lines 12-13, of the specification                                                          
                which state that "[t]he end of the guide tube 10 nearest the                                                                  
                elbow 12 has an outwardly flared, bell-shaped end 18."                                                                        
                         3The American Heritage Dictionary, Second College Edition,                                                           
                (1982) defines "end" as "either extremity of something that has                                                               

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