Granted Patent
Utility
US 4,820,099 · App. 07/116,549
Binder slide failure prevention system
Inventor:
Thomas T. Battisti
Patented Case
View Patent ↗
Granted: Apr 11, 1989
Filed: Nov 4, 1987
Inventor
Thomas T. Battisti
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.