Granted Patent
Utility
US 5,249,466 · App. 07/860,333
Ultrasonic transducer for determining if anisotropic structures are present in metal
Inventor:
Martin Peter William Jones
Patented Case
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Granted: Oct 5, 1993
Filed: Mar 30, 1992
Inventor
Martin Peter William Jones
Assignee (at issue)
Aluminum Company of America
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.