Legal Opinion

Leon F. Urbain and Loxit Systems, Inc. v. Knapp Brothers Manufacturing Company, Al Levinson, Charles Levinson, and Robert Levinson

Court of Appeals for the Sixth Circuit

Decided December 1, 1954No. 12155PublishedCited by 114 opinions

1Opinion of the Court

MARTIN, Circuit Judge.

The appellants — Leon F. Urbain, an individual residing in Chicago, and Loxit Systems, Inc., an Illinois corporation— filed on February 2, 1953, a complaint in the United States District Court for Southern Ohio against appellees — Knapp Brothers Manufacturing Company, an Ohio corporation, and A1 Levinson and his two sons, Charles and Robert, as controlling stockholders of the corporation. Urbain, as sole owner, and Loxit Systems, Inc., as exclusive licensee of Letters Patent 2,319,278 and 2,338,146, sought to enjoin appellees from infringing such patents and from…

2Cases cited25 opinions

  1. Kerotest Manufacturing Co. v. C-O-Two Fire Equipment Co.Supreme Court of the United States · 1952
  2. Roche v. Evaporated Milk Assn.Supreme Court of the United States · 1943
  3. Mayo v. Lakeland Highlands Canning Co.Supreme Court of the United States · 1940
  4. Kessler v. EldredSupreme Court of the United States · 1907
  5. Sims v. GreeneCourt of Appeals for the Third Circuit · 1947

20 more not listed; retrieve them via the Exa API.

3Cited by114 opinions

  1. Helen Jones v. City of Monroe, MichiganCourt of Appeals for the Sixth Circuit · 2003
  2. Lawrence Roth v. Bank of the CommonwealthCourt of Appeals for the Sixth Circuit · 1978
  3. Continental Oil Company v. The Frontier Refining CompanyCourt of Appeals for the Tenth Circuit · 1964
  4. Usaco Coal Company v. Carbomin Energy, Inc.Court of Appeals for the Sixth Circuit · 1982
  5. International Controls Corp. v. VescoCourt of Appeals for the Second Circuit · 1974

109 more not listed; retrieve them via the Exa API.

Showing a preview — retrieve the full document via the Exa API.

Powered by the Exa API