Granted Patent
Utility
US 4,474,174 · App. 06/469,031
Surgical instrument for an endoscope
Inventor:
Claude E. Petruzzi
Patented Case
View Patent ↗
Granted: Oct 2, 1984
Filed: Feb 23, 1983
Inventor
Claude E. Petruzzi
Assignee (at issue)
American Hospital Supply Corp.
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.