Granted Patent
Utility
US 4,304,134 · App. 06/147,801
Apparatus for ultrasonically inspecting circular bores
Inventors:
Marshall J. Rouse, Colon K. Ange
Patented Case
View Patent ↗
Granted: Dec 8, 1981
Filed: May 8, 1980
Inventors
Marshall J. Rouse
Colon K. Ange
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.