Patents by Inventor Edward C. McIrvine

Edward C. McIrvine 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).

  • Printing machine having immediate duplexing capabilities
    Patent number: 4307958
    Abstract: A printing machine in which a sheet is moved into communication with a marking station to establish visible representations of indicia thereon. After establishing indicia on one side of the sheet, the sheet is inverted so that the same leading edge of the sheet moves into communication with the marking station. As the other side of the sheet moves into communication with the marking station, visible representations of indicia are established thereon.
    Type: Grant
    Filed: August 22, 1980
    Date of Patent: December 29, 1981
    Assignee: Xerox Corporation
    Inventor: Edward C. McIrvine