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Manufacturers Index - J. Leukart Manufacturing Co.
Patents
This page contains information on patents issued to this manufacturer.

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USPTO = U.S. Patent Office . Images of the actual patent can be viewed on the U.S. Patent Office web site but a special TIFF viewer must be installed with your browser in order properly work. More information on how to configure your computer to view these patents can be found at TIFF image Viewers for Patent Images.
DATAMP = Directory of American Tool And Machinery Patents . A sister site to VintageMachinery.org with information on patents related to machinery and tools. A much easier user interface than the USPTO's for finding information on machinery patents.

Patent Number Date Title Name City Description
552,534 Jan. 07, 1896 Watch-movement box Walter W. Owen Columbus, OH This patent is of interest because co-inventor Leukart went on to patent a highly gizmotic door mortiser; see patent 1,037,939.
    Watch-movement box Jacob Leukart Columbus, OH  
1,037,939 Sep. 10, 1912 Mortising-machine Jacob Leukart Columbus, OH This invention relates to new and useful improvements in automatic mortising apparatus and the object in view is to produce a simple(!) and efficient machine of this nature in which an elongated mortise may be formed in the block or board, the bottom of the mortise being straight and the end of the mortise concaved." What qualified as "complex"?
Examples have been seen, labeled, "J. Leukart MF; Patent Sept. 10, 1912; Columbus, Ohio" or "J. Leukart Mfg. Co. Pat'd Sept 10, 1912, Columbus, Ohio"
See also patent 145,515.
145,515 Jan. 28, 1913 Mortising machine Jacob Leukart Columbus, OH See also 1,037,939.
2,856,828 Oct. 21, 1958 Impacting machine Edward G. Lewis Columbus, OH Of interest because J. Leukart Manufacturing Co. made a gizmotacular door mortiser; see patent 1,037,939.
    Impacting machine Gerald H. Brown Columbus, OH  
2,894,435 Jul. 14, 1959 Impacting machine Gerald H. Brown Columbus, OH Of interest because J. Leukart Manufacturing Co. made a gizmotacular door mortiser; see patent 1,037,939.