Ex Parte HUSSAIN et al - Page 2




          Appeal No. 1999-1349                                                        
          Application No. 08/110,115                                 Page 2           


                                     BACKGROUND                                       
               Appellants’ invention relates to a liquid composition for              
          use in cooling skin, and methods of use of the composition.  An             
          understanding of the invention can be derived from a reading of             
          exemplary claim 1, which is reproduced below.                               
                    1.  A non-ozone depleting, non-toxic and non-                     
               carcinogenic vapocoorant liquid chemical composition for use           
               in localized cooling of a desired area of the skin of humans           
               and other animals and in conjunction with the spray and                
               stretch treatment technique, said composition:                         
                    comprising by total weight of the composition 40 to 55%           
               hydrofluorocarbon selected from the group consisting of 1,1-           
               difluorocarbon selected from the group consisting of 1,1-              
               difluorocarbon, 1,1,1,2-tetrafluoroethane, 1,3-trifluoro-2-            
               fluoro propane, and mixtures thereof, and 60 to 45% of ethyl           
               alcohol; being substantially free of chlorinated                       
               fluorocarbons; and                                                     
                    being capable of cooling said desired area to at least            
               as low as approximately minus 5°C, upon spraying of said               
               composition onto said desired area, for a maximum of 5                 
               seconds.                                                               
               The prior art references of record relied upon by the                  
          examiner in rejecting the appealed claims are:                              
          Bargigia et al. (Bargigia)         4,198,313      Apr. 15, 1980             
          Seney                              4,646,735      Mar. 03, 1987             
          McDow                              5,330,745      Jul. 19, 1994             
          Remington’s Pharmaceutical Sciences (Remington), 17th Ed., 1985,            
          p.1307.                                                                     
          Heiskel et al. (Heiskel), Chemical Abstracts  114:108708y (1991).           









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