Granted Patent
Utility
US 4,216,268 · App. 05/897,371
Balanced oriented flexible packaging composite
Inventor:
Nathan Stillman
Patented Case
View Patent ↗
Granted: Aug 5, 1980
Filed: Apr 18, 1978
Inventor
Nathan Stillman
Assignee (at issue)
Champion International Corporation Limited
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.