Granted Patent
Utility
US 4,353,258 · App. 06/189,499
Compound angle wedges for coupling ultrasound into a curved surface object
Inventor:
David Hunter
Patented Case
View Patent ↗
Granted: Oct 12, 1982
Filed: Sep 22, 1980
Inventor
David Hunter
Assignee (at issue)
Westinghouse Electric Company LLC
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.