Granted Patent
Utility
US 6,164,137 · App. 09/243,592
Electromagnetic acoustic transducer (EMAT) inspection of tubes for surface defects
Inventors:
Jimmy W. Hancock, Daniel T. MacLauchlan
Patented Case
View Patent ↗
Granted: Dec 26, 2000
Filed: Feb 3, 1999
Inventors
Jimmy W. Hancock
Daniel T. MacLauchlan
Assignee (at issue)
McDermott Technology, Inc.
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.