Granted Patent
Utility
US 5,274,489 · App. 07/835,893
Thermal imager systems
Inventors:
Brian F. Smith, Glenn Cuthbertson
Patented Case
View Patent ↗
Granted: Dec 28, 1993
Filed: Feb 14, 1992
Inventors
Brian F. Smith
Glenn Cuthbertson
Assignee (at issue)
GEC-Marconi Ltd.
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.