Ex Parte DUCK et al - Page 6




          Appeal No. 1997-4356                                                        
          Application No. 08/458,628                                                  

          attached to the claimed amount of plasticizer.  In relevant part,           
          appellants' specification states that "the plasticizer proportion           
          is in the range of 15 to 65 weight% and preferably 25 to 45                 
          weight%".  Such a stated preference would seem to allay any                 
          suggestion of criticality. In re Armbruster, 512 F.2d 676, 679-             
          680, 185 USPQ 152, 155 (CCPA 1975); In re Shepard, 319 F.2d 194,            
          199, 138 USPQ 148, 152 (CCPA 1963).                                         
               As a final point, we note that appellants base no argument             
          upon objective evidence of nonobviousness, such as unexpected               
          results.  Also, although appellants make reference to an Exhibit            
          A at page 8 of the brief, the examiner states at page 5 of the              
          answer that he "has failed to find Exhibit A and as such, this              
          evidence has not been considered."  Furthermore, we agree with              
          the examiner that "the Japanese reference is so clear as to the             
          amount of plasticizer incorporated therein" (page 5 of answer).             
               In conclusion, based on the foregoing and the reasons well-            
          stated by the examiner, the examiner's decision rejecting the               
          appealed claims is affirmed.                                                








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