Patents by Inventor Robert G. Fort

Robert G. Fort 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).

  • High mineral composite fine paper
    Patent number: 4445970
    Abstract: Composite fine paper suitable for offset and gravure printing at high speeds and containing over 30% filler up to 70% filler for basis weights of 30-150 lbs/3300 ft.sup.2, is produced on a high speed paper-making machine from a furnish containing large quantities of filler, preferably a mixture of clay and talc, and including 3-7% of an ionic latex which is selected to provide good retention and good strength without leaving a residue on the screen.
    Type: Grant
    Filed: June 1, 1981
    Date of Patent: May 1, 1984
    Assignee: Penntech Papers, Inc.
    Inventors: Richard L. Post, Robert G. Fort