Granted Patent
Utility
US 5,318,546 · App. 07/936,830
Method of catheter irrigation and aspiration
Inventor:
Steven F. Bierman
Patented Case
View Patent ↗
Granted: Jun 7, 1994
Filed: Aug 28, 1992
Inventor
Steven F. Bierman
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.