Granted Patent
Utility
US 4,370,070 · App. 06/234,372
Digital thermometer having Fahrenheit and Celsius readout modes
Inventor:
Marcel Henri Leroux
Patented Case
View Patent ↗
Granted: Jan 25, 1983
Filed: Feb 13, 1981
Inventor
Marcel Henri Leroux
Assignee (at issue)
General Electric Company
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.