Granted Patent
Utility
US 4,607,993 · App. 06/795,077
Combined punch and binding machine with thickness gauge and back gauge plate adjustment
Inventor:
Roger M. Scharer
Patented Case
View Patent ↗
Granted: Aug 26, 1986
Filed: Nov 5, 1985
Inventor
Roger M. Scharer
Assignee (at issue)
General Binding Corporation
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.