Granted Patent
Utility
US 4,433,266 · App. 06/241,003
Electrical ignition probe means and method of making the same
Inventor:
Fred Riehl
Patented Case
View Patent ↗
Granted: Feb 21, 1984
Filed: Mar 6, 1981
Inventor
Fred Riehl
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.