Ex Parte MAY - Page 5



          Appeal No. 2006-1309                                                        
          Application No. 09/166,625                                                  

          Garland actually “has a thickness of 0.0005 - 0.002 inches or               
          0.5 - 2 mils” (page 11 of Answer, first paragraph).  In                     
          response, appellant has not refuted the examiner’s calculations             
          by pointing to any error therein but has simply offered a bald              
          challenge to the calculations (see page 2 of Reply Brief, second            
          paragraph).  Accordingly, we will accept the examiner’s                     
          calculations as reasonable.  Furthermore, it should be quite                
          clear that a layer of a drop cloth cannot realistically have a              
          thickness of 0.0005 mils, which is on the order of microns.  In             
          addition, it is well settled that where patentability is                    
          predicated upon a change in a condition of a prior art                      
          composition, such as a change in size, concentration or the                 
          like, the burden is on the applicant to establish with objective            
          evidence that the change is critical, i.e., it leads to a new,              
          unexpected result.  In re Woodruff, 919 F.2d 1575, 1578,                    
          16 USPQ2d 1934, 1936 (Fed. Cir. 1990); In re Aller, 220 F.2d                
          454, 456, 105 USPQ 233, 235 (CCPA 1955).  In the present case,              
          appellant has not attached any criticality to the claimed                   
          thickness, and the disclosed preference for the claimed                     
          thickness would seem to allay any suggestion of criticality (see            
          page 10 of specification, second paragraph).                                

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