Granted Patent
Utility
US 5,281,205 · App. 07/850,695
Vascular access system and clearing method
Inventor:
William E. McPherson
Patented Case
View Patent ↗
Granted: Jan 25, 1994
Filed: Mar 11, 1992
Inventor
William E. McPherson
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.