Granted Patent
Utility
US 4,433,924 · App. 06/303,433
Thermal reference apparatus
Inventor:
Thomas Gregory Quinn
Patented Case
View Patent ↗
Granted: Feb 28, 1984
Filed: Sep 18, 1981
Inventor
Thomas Gregory Quinn
Assignee (at issue)
Honeywell Limited
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.