Granted Patent
Utility
US 4,676,428 · App. 06/843,767
Fold line relief cuts for paperboard containers and method of fabrication
Inventor:
Jack A. McClure
Patented Case
View Patent ↗
Granted: Jun 30, 1987
Filed: Mar 25, 1986
Inventor
Jack A. McClure
Assignee (at issue)
Inland Container 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.