Granted Patent
Utility
US 5,156,155 · App. 07/558,972
Transesophageal probe shaft
Inventor:
Robert W. King
Patented Case
View Patent ↗
Granted: Oct 20, 1992
Filed: Jul 25, 1990
Inventor
Robert W. King
Assignee (at issue)
Hewlett-Packard Company, L.P.
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.