Granted Patent
Utility
US 5,271,402 · App. 07/892,451
Turbine drive mechanism for steering ultrasound signals
Inventors:
King-Wah W. Yeung, J. Fleming Dias
Patented Case
View Patent ↗
Granted: Dec 21, 1993
Filed: Jun 2, 1992
Inventors
King-Wah W. Yeung
J. Fleming Dias
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.