Granted Patent
Utility
US 5,876,815 · App. 08/591,016
Oil and grease resistant paper products and process for producing the products
Inventors:
Erland R. Sandstrom, Kenneth J. Shanton, Timothy P. Hartjes, Dean Swoboda
Patented Case
View Patent ↗
Granted: Mar 2, 1999
Filed: Jan 25, 1996
Inventors
Erland R. Sandstrom
Kenneth J. Shanton
Timothy P. Hartjes
Dean Swoboda
Assignee (at issue)
JAMES RIVER CORPORATION OF VIRGINIA
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.