Brown was born in Pomona, California in 1893, son of James Calhoun and Lily May (Nichols) Brown. The father was a lawyer in Los Angeles from Richmond, Virginia, descendant of the "famous Southern Calhoun family", known as liberally educated men, many with scholastic degrees.[1]
In 1920 Brown was admitted to the State Bar of California. He started with the patent lawyer firm Raymond Ives Blakeslee, where he became a partner in June 1922. The practice of the firm was focussed on cases involving patents, trademarks, copyrights and unfair competition in the Federal courts.[1] In a dozen years he to "a position of leading importance among the members of the Southern California bar."[3]
Brown was also admitted to the United States Supreme Court and the United States courts of appeals for California, Illinois, and Washington, D.C.[4] From the early 1920s until the early 1940s Brown was president of the Los Angeles Patent Law Association, and participated in several United States Congress hearings on patents.[5][6][7] By 1945 he Brown was head of his own firm of J. Calvin Brown, Los Angeles.[8]
^ abcdObituary: J. Calvin Brown (1893-1973)." in: Mechanical Engineering, Volume 95. American Society of Mechanical Engineers, 1973. p. 93
^ abWilliam Richard Cutter. American Biography: A New Cyclopedia, Volume 51. Pub. under the direction of the American historical society, 1932. p. 328.
^Who's who in Los Angeles County, Who's Who in Los Angeles County, Publishers, 1932. p. 52.
^United States. Congress. House. Committee on Patents, Hearings. 1924, p. 65
^United States. Congress. House. Hearings - Copyright. 1939. p. 77
^United States. U.S.Cong. House. Committee on patents. Preventing Publication of Inventions and Prohibiting Injuctions on Patents. Hearings...on H.R. 3359....and H.R. 3360...Feb. 20-April 23, 1941. p. 348.