Patents by Inventor Steve Liebman

Steve Liebman 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).

  • Method of producing grouped symbols
    Patent number: 4455113
    Abstract: A method and an article, produced by the method, of symbols arranged in a group, taken from a plurality of identifiable symbols, and which may be produced in one piece from a plate of metal with the aid of a set of separate master symbols, wherein selected of the master symbols represent the group of arranged symbols, and with the aid of a transfer-and metal-removing mechanism for transferring the contours of the master symbols onto the plate.
    Type: Grant
    Filed: September 11, 1981
    Date of Patent: June 19, 1984
    Assignee: Namecraft Manufacturing Corp.
    Inventor: Steve Liebman