Granted Patent
Utility
US 5,638,822 · App. 08/497,238
Hybrid piezoelectric for ultrasonic probes
Inventors:
Mir Said Seyed-Bolorforosh, Michael Greenstein, Douglas Harriott, Turuvekere R. Gururaja
Patented Case
View Patent ↗
Granted: Jun 17, 1997
Filed: Jun 30, 1995
Inventors
Mir Said Seyed-Bolorforosh
Michael Greenstein
Douglas Harriott
Turuvekere R. Gururaja
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.