Granted Patent
Utility
US 5,384,543 · App. 07/972,776
Portable microwave instrument for non-destructive evaluation of structural characteristics
Inventors:
Don W. Bible, Richard I. Crutcher, Carl W. Sohns, Stephen R. Maddox
Patented Case
View Patent ↗
Granted: Jan 24, 1995
Filed: Nov 9, 1992
Inventors
Don W. Bible
Richard I. Crutcher
Carl W. Sohns
Stephen R. Maddox
Assignee (at issue)
Martin Marietta Energy Systems, 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.