Attorney(s) appearing for the Case
H. Templeton Brown, Chicago, Ill., Horace R. Lamb, New York City, Miles G. Seeley, Robert L. Stern, Patrick W. O'Brien, Chicago, Ill., Mayer, Friedlich, Spiess, Tierney, Brown & Platt, Chicago, Ill., LeBoeuf, Lamb & Leiby, New York City, of counsel, for American Gas Ass'n.
Frank F. Fowle, Chicago, Ill., Aloysius F. Power, Daniel Boone, Detroit, Mich., Herbert S. Wander, Chicago, Ill., Pope, Ballard, Uriell, Kennedy, Shepard & Fowle, Chicago, Ill., of counsel, for Delco Appliance Division of General Motors Corporation.
Justin A. Stanley, Robert F. Hanley, A. Daniel Feldman, Chicago, Ill., Isham, Lincoln & Beale, Chicago, Ill., of counsel, for Northern Illinois Gas Co., Marvin Chandler and E. D. Sheehan.
Clarence H. Ross, Roland D. Whitman, William J. Winger, Bruce J. McWhirter, Chicago, Ill., Ross, McGowan, Hardies & O'Keefe, Chicago, Ill., of counsel, for Peoples Gas, Light & Coke Co., Natural Gas Pipeline of America, Texas-Illinois Natural Gas Co., and Eskil I. Bjork, Remick McDowell, Bernard H. Wittman and Daniel Collins.
James B. O'Shaughnessy, William T. Hart, Chicago, Ill., Dallstream, Schiff, Hardin, Waite & Dorschel, Chicago, Ill., of counsel, for North Shore Gas Co. and Roy E. Jones.
Edward H. Hickey, James B. Moran, Chicago, Ill., Bell, Boyd, Lloyd, Haddad & Burns, Chicago, Ill., of counsel, for General Electric Co.
Thomas A. Reynolds, Edward L. Foote, Chicago, Ill., Winston, Strawn, Smith & Patterson, Chicago, Ill., of counsel, for Heating & Air-Conditioning Division of Stewart-Warner Corporation.
Robert C. Keck, James G. Hiering, Val A. Weber, Jr., Chicago, Ill., MacLeish, Spray, Price & Underwood, Chicago, Ill., of counsel, for Bryant Mfg. Co., Division of Carrier Corporation.
Sidney Neuman, Gregory B. Beggs, Chicago, Ill., Pendleton, Neuman, Seibold & Williams, Chicago, Ill., of counsel, for Janitrol Heating & Air-Conditioning, a Division of Midland-Ross Corporation.
Brainerd Chapman, Chicago, Ill., Gallop, Climenko & Gould, Pritchard, Chapman, Pennington, Montgomery & Sloan, Chicago, Ill., of counsel, for Mueller Climatrol Division of Worthington Corporation.
James J. Gaughan, John L. Spalding, Chicago, Ill., for Autogas Co.
Irving W. Zirbel, Milwaukee, Wis., Porter, Quale, Porter & Zirbel, Milwaukee, Wis., Karl Williams, Rockford, Ill., of counsel, for Permaglass Division of A. O. Smith Corporation.
Lee A. Freeman, William J. Friedman, Victor Neumark, Richard F. Levy, Chicago, Ill., Edmund M. Morgan, Vanderbilt University Law School, Nashville, Tenn., Philip B. Kurland, Chicago, Ill., of counsel, for Radiant Burners, Inc.
Tom Arnold, Paul E. Harris, Houston, Tex., Arnold, Roylance & Harris, Houston, Tex., of counsel, for American Patent Law Ass'n.
Max Swiren, Chicago, Ill., amicus curiæ.
Bernard H. Sokol, Leo Arnstein, Chicago, Ill., for Chicago Bar Ass'n.
Peter Fitzpatrick, C. Malcolm Moss, Henry L. Pitts, Chicago, Ill., for Illinois State Bar Ass'n.
Albert E. Jenner, Jr., Philip W. Tone, Chicago, Ill., Sylvester C. Smith, Jr., Newark, N. J., President, American Bar Ass'n, William Poole, Wilmington, Del., Member, Board of Governors, American Bar Ass'n, of counsel, for American Bar Ass'n.
Before HASTINGS, Chief Judge, and DUFFY, SCHNACKENBERG, KNOCH, CASTLE, KILEY and SWYGERT, Circuit Judges.