Patents by Inventor Joseph Levitt

Joseph Levitt has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Duplicating machine for tubular keys
    Patent number: 4203693
    Abstract: A key duplicating machine for tubular keys wherein a key carrier is mounted to axially rotate the tube of the key blank and longitudinally shift the tube for endwise movement into a rotary cutter and rotary indexing to successive cuts.
    Type: Grant
    Filed: July 27, 1978
    Date of Patent: May 20, 1980
    Assignee: Taylor Lock Company
    Inventors: Jerome Schwartz, Joseph Levitt