Granted Patent
Utility
US 6,375,452 · App. 09/557,551
Sheet processing system
Inventor:
Frank R. Nissel
Patented Case
View Patent ↗
Granted: Apr 23, 2002
Filed: Apr 25, 2000
Inventor
Frank R. Nissel
Assignee (at issue)
Welex Incorporated
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.