Granted Patent
Utility
US 4,289,330 · App. 06/083,232
Bookbinding system
Inventor:
Jerome J. Wiermanski
Patented Case
View Patent ↗
Granted: Sep 15, 1981
Filed: Oct 10, 1979
Inventor
Jerome J. Wiermanski
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.