Granted Patent
Utility
US 4,670,989 · App. 06/601,034
Touch probe using microwave transmission
Inventor:
Richard O. Juengel
Patented Case
View Patent ↗
Granted: Jun 9, 1987
Filed: Apr 16, 1984
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.