Granted Patent
Utility
US 4,773,540 · App. 07/091,142
Carton panel locking arrangement
Inventor:
Richard L. Schuster
Patented Case
View Patent ↗
Granted: Sep 27, 1988
Filed: Aug 31, 1987
Inventor
Richard L. Schuster
Assignee (at issue)
Manville 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.