Granted Patent
Utility
US 4,421,942 · App. 06/328,176
Thermocouple mounting system
Inventor:
John F. Crichton
Patented Case
View Patent ↗
Granted: Dec 20, 1983
Filed: Dec 7, 1981
Inventor
John F. Crichton
Assignee (at issue)
ROBERTSHAW CONTROLS PRIVATE 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.