Ex parte PURVIS et al. - Page 15




          Appeal No. 1997-0218                                                        
          Application No. 08/182,757                                                  

          preparing a separate composition comprising the ultraviolet                 
          radiation absorbing material and polyvinyl chloride, would                  
          reduce production time and decrease costs.  See In re                       
          Thompson, 545 F.2d 1290, 1294, 192 USPQ 275, 277 (CCPA 1976)                
          (economic factors alone would have motivated one of ordinary                
          skill in the art to use the claimed invention).  Therefore,                 
          based on the teachings of Beckmann and Kawakubo and the                     
          knowledge of one having ordinary skill in the art, it would                 
          have been obvious to one having ordinary skill in the art to                
          provide a laminated glazing unit with a separate layer of an                
          ultraviolet radiation absorbing material as in the claimed                  
          invention.  The rejection of claims 77 and 78 is affirmed.                  
                                     Conclusion                                       
               For the reasons set forth herein, the rejection of claims              
          42-46, 49, 77 and 78 is affirmed, and the rejection of claim                
          47 is reversed.  The application is further remanded to the                 
          examiner for resolution of the issues identified herein                     
          relating to claims 50, 51 and 66.                                           






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