Granted Patent
Utility
US 5,301,853 · App. 08/087,133
Open top plastic drum with plastic cover
Inventors:
Robert A. Addison, John P. Berg
Patented Case
View Patent ↗
Granted: Apr 12, 1994
Filed: Jul 2, 1993
Inventors
Robert A. Addison
John P. Berg
Assignee (at issue)
Greif Bros. 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.