Granted Patent
Utility
US 5,312,359 · App. 07/983,692
Intravenous cannula insertion assembly with protective shield
Inventor:
Henry G. Wallace
Patented Case
View Patent ↗
Granted: May 17, 1994
Filed: Dec 1, 1992
Inventor
Henry G. Wallace
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.