Granted Patent
Utility
US 4,532,933 · App. 06/487,934
Focusing mechanism for an ultrasound device
Inventor:
D. Eugene Hokanson
Patented Case
View Patent ↗
Granted: Aug 6, 1985
Filed: Apr 25, 1983
Inventor
D. Eugene Hokanson
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.