Granted Patent
Utility
US 5,597,082 · App. 08/437,078
Spout fitment closure plug
Inventors:
Daniel Luch, Brian M. Adams
Patented Case
View Patent ↗
Granted: Jan 28, 1997
Filed: May 5, 1995
Inventors
Daniel Luch
Brian M. Adams
Assignee (at issue)
Portola Packaging, 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.