Granted Patent
Utility
US 4,251,020 · App. 06/116,535
Integral corrugated partition
Inventor:
Jon M. Schwaner
Patented Case
View Patent ↗
Granted: Feb 17, 1981
Filed: Jan 29, 1980
Inventor
Jon M. Schwaner
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.