Granted Patent
Utility
US 4,769,014 · App. 07/057,431
Gastroenteric feeding tube for endoscopic placement
Inventor:
Ronald D. Russo
Patented Case
View Patent ↗
Granted: Sep 6, 1988
Filed: Jun 2, 1987
Inventor
Ronald D. Russo
Assignee (at issue)
Superior Biosystems Inc.
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.