Granted Patent
Utility
US 4,362,265 · App. 06/259,652
Container
Inventor:
Donald L. Williams
Patented Case
View Patent ↗
Granted: Dec 7, 1982
Filed: May 1, 1981
Inventor
Donald L. Williams
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.