Granted Patent
Utility
US 4,790,809 · App. 07/050,509
Ureteral stent
Inventor:
David H. Kuntz
Patented Case
View Patent ↗
Granted: Dec 13, 1988
Filed: May 14, 1987
Inventor
David H. Kuntz
Assignee (at issue)
Medical Engineering Company, LLC
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.