Granted Patent
Utility
US 6,833,055 · App. 10/654,336
Multi-ply paperboard prepared from recycled materials and methods of manufacturing same
Inventors:
James Hansen, Richard L. Munson, Jr., Roberto Balaguer, Jr., Jeffrey M. Leitinger, Thomas F. Barton
Patented Case
View Patent ↗
Granted: Dec 21, 2004
Filed: Sep 2, 2003
Inventors
James Hansen
Richard L. Munson, Jr.
Roberto Balaguer, Jr.
Jeffrey M. Leitinger
Thomas F. Barton
Assignee (at issue)
Rock-Tenn Company
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.