Granted Patent
Utility
US 4,381,278 · App. 06/331,507
Method for forming a coated paperboard container
Inventor:
Dominic D. Ingraffea
Patented Case
View Patent ↗
Granted: Apr 26, 1983
Filed: Dec 16, 1981
Inventor
Dominic D. Ingraffea
Assignee (at issue)
James River-Dixie Northern, 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.