Granted Patent
Utility
US 4,218,917 · App. 05/959,720
Outdoors thermometer unit
Inventor:
Robert K. Stortz
Patented Case
View Patent ↗
Granted: Aug 26, 1980
Filed: Nov 13, 1978
Inventor
Robert K. Stortz
Assignee (at issue)
The Ohio Thermometer 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.