Ex parte CLARK - Page 4




          Appeal No. 96-2058                                                          
          Application No. 08/147,090                                                  

               We refer to the brief and to the answer for a complete                 
          exposition of the opposing viewpoints expressed by the                      
          appellant and the examiner concerning the above noted                       
          rejections.                                                                 
                                       OPINION                                        
               For the reasons set forth in the answer and below, we                  
          will sustain each of the rejections before us on this appeal.               
               As background, an affidavit under 37 CFR § 1.131 was                   
          filed by the appellant in an attempt to antedate the Gorelick               
          patent.  However, the examiner considers this affidavit to be               
          ineffective on the grounds that the appellant and Gorelick are              
          claiming the same invention.  On this appeal, it is the                     
          appellant's fundamental position that his claimed method and                
          patentees' claimed method are not the same allegedly because                
          the "at least a partial vacuum" feature of the appealed claims              
          is not practiced in the method defined by the patent claims.                
          In rebuttal, the examiner contends that the vapor venting                   
          feature embraced by Gorelick's method claims would inherently               
          produce at least a partial vacuum on the surface area of the                
          water undergoing treatment as required by the appellant's                   
          claims.                                                                     

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