Granted Patent
Utility
US 4,742,470 · App. 06/890,187
Tool identification system
Inventor:
Richard O. Juengel
Patented Case
View Patent ↗
Granted: May 3, 1988
Filed: Jul 25, 1986
Inventor
Richard O. Juengel
Assignee (at issue)
GTE Valeron Corporation
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.