Granted Patent
Utility
US 5,120,316 · App. 07/589,721
Urethral catheter and catheterization process
Inventors:
Alvaro Morales, Michael G. Hanna, Jr.
Patented Case
View Patent ↗
Granted: Jun 9, 1992
Filed: Sep 28, 1990
Inventors
Alvaro Morales
Michael G. Hanna, Jr.
Assignee (at issue)
Akzo N.V.
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.