Granted Patent
Utility
US 5,085,639 · App. 07/416,927
Safety winged needle medical devices
Inventor:
Dana Wm. Ryan
Patented Case
View Patent ↗
Granted: Feb 4, 1992
Filed: Oct 4, 1989
Inventor
Dana Wm. Ryan
Assignee (at issue)
Ryan Medical, 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.