Granted Patent
Utility
US 4,491,502 · App. 06/448,649
Molding of paperboard containers
Inventor:
Leslie L. Martin, Jr.
Patented Case
View Patent ↗
Granted: Jan 1, 1985
Filed: Dec 10, 1982
Inventor
Leslie L. Martin, Jr.
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.