Granted Patent
Utility
US 5,292,195 · App. 07/942,216
Thermographic evaluation technique
Inventor:
Elton M. Crisman, Jr.
Patented Case
View Patent ↗
Granted: Mar 8, 1994
Filed: Sep 9, 1992
Inventor
Elton M. Crisman, Jr.
Assignee (at issue)
LOCKHEED MARTIN CORPORATION
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.