Granted Patent
Utility
US 5,445,590 · App. 08/017,480
Collapsed, tubular carton erecting apparatus
Inventor:
Irvan Leo Pazdernik
Patented Case
View Patent ↗
Granted: Aug 29, 1995
Filed: Feb 12, 1993
Inventor
Irvan Leo Pazdernik
Assignee (at issue)
Douglas Machine 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.