Granted Patent
Utility
US 5,320,236 · App. 08/019,982
Plastic container package with linerless sealing closure system
Inventor:
James L. Gregory
Patented Case
View Patent ↗
Granted: Jun 14, 1994
Filed: Feb 17, 1993
Inventor
James L. Gregory
Assignee (at issue)
Owens-Illinois Closure 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.