Granted Patent
Utility
US 4,984,920 · App. 07/381,977
Closure assembly having an axially movable liquid dispenser
Inventor:
R. Kevin O'Neill
Patented Case
View Patent ↗
Granted: Jan 15, 1991
Filed: Jul 19, 1989
Inventor
R. Kevin O'Neill
Assignee (at issue)
Calmar Holdings LLC
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.