Ex parte SLATER et al. - Page 17




          Appeal No. 97-2486                                                          
          Application No. 08/308,983                                                  

          point out and distinctly claim the subject matter which the                 
          appellants regard as the invention.  The purpose of the second              
          paragraph of § 112 is to provide those who would endeavor, in               
          future enterprises, to approach the area circumscribed by the               
          claims of a patent, with adequate notice demanded by due                    
          process of law, so that they may more readily and accurately                
          determine the boundaries of protection involved and evaluate                
          the possibility of infringement and dominance.  In re Hammack,              
          427 F.2d 1378, 1382, 166 USPQ 204, 208 (CCPA 1970).  Moreover,              
          in order to satisfy the requirements of the second paragraph                
          of § 112, a claim must accurately define the invention in the               
          technical sense.  See In re Knowlton, 481 F.2d 1357, 1366, 178              
          USPQ 486, 492-93 (CCPA 1973).  In addition, while the language              
          of claim 38 may appear, for the most part, to be                            
          understandable when read in the abstract, no claim may be read              
          apart from and independent of the supporting disclosure on                  
          which it is based.  See In re Cohn, 438 F.2d 989, 993, 169                  
          USPQ 95, 98 (CCPA 1971).                                                    
               Applying these principles to the present case, we are of               
          the opinion that the recitation of the step of "coating the                 
          entire cast conductive body" introduces uncertainty into the                

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