Granted Patent
Utility
US 6,819,120 · App. 10/293,648
Non-contact surface conductivity measurement probe
Inventor:
Kent K. Tam
Patented Case
View Patent ↗
Granted: Nov 16, 2004
Filed: Nov 13, 2002
Inventor
Kent K. Tam
Assignee (at issue)
NORTHROP GRUMMAN 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.