Granted Patent
Utility
US 6,733,431 · App. 09/956,161
Device and method for folding newspapers with flexible inserting position
Inventor:
Charles Henry Dufour
Patented Case
View Patent ↗
Granted: May 11, 2004
Filed: Sep 19, 2001
Inventor
Charles Henry Dufour
Assignee (at issue)
Heidelberger Druckmaschinen AG
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.