Granted Patent
Utility
US 5,209,391 · App. 07/847,650
Collapsible paperboard container
Inventor:
Richard G. Krautsack
Patented Case
View Patent ↗
Granted: May 11, 1993
Filed: Mar 5, 1992
Inventor
Richard G. Krautsack
Assignee (at issue)
Comark Merchandising, 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.