Granted Patent
Utility
US 5,345,139 · App. 08/113,450
Electrostrictive ultrasonic probe having expanded operating temperature range
Inventors:
Turuvekere R. Gururaja, Joseph Ronald Fielding, Thomas R. Shrout, Sei-Joo Jang
Patented Case
View Patent ↗
Granted: Sep 6, 1994
Filed: Aug 27, 1993
Inventors
Turuvekere R. Gururaja
Joseph Ronald Fielding
Thomas R. Shrout
Sei-Joo Jang
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.