Granted Patent
Utility
US 5,136,421 · App. 07/546,602
Thermal imaging system and method using scene-average radiation as a thermal reference
Inventor:
Stephen F. Sagan
Patented Case
View Patent ↗
Granted: Aug 4, 1992
Filed: Jun 29, 1990
Inventor
Stephen F. Sagan
Assignee (at issue)
Texas Instruments Incorporated
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.