Granted Patent
Utility
US 4,307,723 · App. 06/119,865
Externally grooved ureteral stent
Inventor:
Roy P. Finney
Patented Case
View Patent ↗
Granted: Dec 29, 1981
Filed: Feb 8, 1980
Inventor
Roy P. Finney
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.