Patents by Inventor Joseph J. Field

Joseph J. Field 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).

  • Reverse side marking plotter/printer pad
    Patent number: 4536770
    Abstract: Improved plotting and printing apparatus has a writing surface for supporting a printing medium and which has an opening for exposing the underside of the medium. A transparent plate is mounted to the supporting surface so as to permit placement onto that surface of a printing medium such as a plural leaf form set whose area is larger than that of the plate so that one portion of the medium extends across the opening under the plate and can be printed on by a printer positioned under the surface opposite the opening, while another portion of the medium lies on the surface beyond the plate so that it can be written on from above the surface.
    Type: Grant
    Filed: October 3, 1983
    Date of Patent: August 20, 1985
    Assignees: Allen Datagraph Incorporated, Datascope Corporation
    Inventors: Richard M. Allen, Jeffrey M. Arnold, Joseph J. Field, Terry E. Spraker