Granted Patent
Utility
US 3,938,529 · App. 05/490,573
Indwelling ureteral catheter
Inventor:
Robert Gibbons
Patented Case
View Patent ↗
Granted: Feb 17, 1976
Filed: Jul 22, 1974
Inventor
Robert Gibbons
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.