Granted Patent
Utility
US 4,723,685 · App. 06/944,897
Lined closure made by the unscrewing process
Inventors:
William E. Fillmore, Maximillian Kusz
Patented Case
View Patent ↗
Granted: Feb 9, 1988
Filed: Dec 19, 1986
Inventors
William E. Fillmore
Maximillian Kusz
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.