Granted Patent
Utility
US 5,163,912 · App. 07/728,600
Catheter and stylet assembly having dual position stylet
Inventors:
Eric L. Gay, Sheila J. Hanson, William G. O'Neill
Patented Case
View Patent ↗
Granted: Nov 17, 1992
Filed: Jul 11, 1991
Inventors
Eric L. Gay
Sheila J. Hanson
William G. O'Neill
Assignee (at issue)
Minnesota Mining and Manufacturing Company
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.