Granted Patent
Utility
US 4,474,825 · App. 06/356,140
Monitoring temperature of wire during heating
Inventor:
Peter Schmidt
Patented Case
View Patent ↗
Granted: Oct 2, 1984
Filed: Mar 8, 1982
Inventor
Peter Schmidt
Assignee (at issue)
Nortel Networks 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.