Granted Patent
Utility
US 5,263,701 · App. 07/850,430
Collapsable container for stacks of sheet material
Inventor:
Stephen R. Kleinhen
Patented Case
View Patent ↗
Granted: Nov 23, 1993
Filed: Mar 12, 1992
Inventor
Stephen R. Kleinhen
Assignee (at issue)
AM International, Inc.
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.