Granted Patent
Utility
US 5,464,111 · App. 08/025,481
Closure for medication container
Inventors:
Ronald R. Vacek, Bruce J. Semmler, Edward W. Owens
Patented Case
View Patent ↗
Granted: Nov 7, 1995
Filed: Mar 3, 1993
Inventors
Ronald R. Vacek
Bruce J. Semmler
Edward W. Owens
Assignee (at issue)
Sterling Winthrop 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.