Granted Patent
Utility
US 5,533,993 · App. 08/543,150
Medication injector with protected cannula and Y-site lockout
Inventor:
Gunther Maier
Patented Case
View Patent ↗
Granted: Jul 9, 1996
Filed: Oct 13, 1995
Inventor
Gunther Maier
Assignee (at issue)
International Medication Systems, Limited
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.