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SANITARY DIST. OF CHICAGO v. ACTIVATED SLUDGE

No. 5941.

90 F.2d 727 (1937)

SANITARY DIST. OF CHICAGO v. ACTIVATED SLUDGE, Inc., et al.

Circuit Court of Appeals, Seventh Circuit.

June 16, 1937.

Attorney(s) appearing for the Case

Arthur C. Denison, of Cleveland, Ohio, and James Hamilton Lewis, Wallace R. Lane, Ernst Buehler, and Ralph M. Snyder, all of Chicago, Ill., for appellant.

Lynn A. Williams, Clifford C. Bradbury, and Warren C. Horton, all of Chicago, Ill., for appellee.

Before EVANS, SPARKS, and MAJOR, Circuit Judges.

SPARKS, Circuit Judge.

This appeal involves the validity and infringement of five United States patents relating to the purification of sewage. They were all issued to Walter Jones, and, together with the numbers of the claims here in issue, are as follows:

      Number         Date of Application     Date of Issue     Claims Involved
    --------------------------------------------------------------------------
    1,247,540           October  9, 1914...

                    
                    
                    

                        

                            

                                
                            

                            

                                

                                    
    
                                        
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