Granted Patent
Utility
US 5,181,189 · App. 07/125,298
Device for the storage and time-regulated dispensing of drugs
Inventor:
Dieter Hafner
Patented Case
View Patent ↗
Granted: Jan 19, 1993
Filed: Nov 25, 1987
Inventor
Dieter Hafner
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.