Ex parte DOWDLE - Page 2




          Appeal No. 95-0155                                                          
          Application No. 07/890,335                                                  


          through 90, and 92 through 96, which are all of the claims                  
          remaining in the application.                                               
                                REPRESENTATIVE CLAIMS                                 
               Claims 69 and 95, which are illustrative of the subject                
          matter on appeal, read as follows:                                          
               69.  A method of treatment or prophylaxis of thrombosis,               
          embolism or other conditions where it is desired to produce                 
          fibrinolytic or proteolytic activity selectively in the                     
          presence of fibrin via the mechanism of plasminogen activation              
          which comprises administering by injection or intravenously to              
          a patient a plasminogen activator composition comprising a                  
          plasminogen activator component, said component being a human               
          tPA/human pro-tPA couple composed of from 70 to 100% human                  
          pro-tPA and from 0 to 30% human tPA.                                        
               95.  A pharmaceutical composition suitable for the                     
          treatment or prophylaxis of thrombosis or embolism which                    
          composition acts selectively in the presence of fibrin by                   
          means of local plasminogen activation and which is in dosage                
          units for injection or intravenous infusion, said composition               
          comprising:                                                                 
               (a) a human tPA/human pro-tPA couple composed of 70-100%               
          human pro-tPA and up to 30% human tPA; and                                  
               (b) a physiologically compatible medium.                               
                                   THE REFERENCES                                     
               In rejecting all of the appealed claims under 35 U.S.C.                
          § 103, the examiner relies on the following reference:                      
          Collen et al.               0 041 766               Dec. 16, 1981           
          (European Patent Application)                                               



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