Granted Patent
Utility
US 5,256,974 · App. 07/724,544
Method and apparatus for a floating reference electric field sensor
Inventor:
Robin Padden
Patented Case
View Patent ↗
Granted: Oct 26, 1993
Filed: Jun 27, 1991
Inventor
Robin Padden
Assignee (at issue)
IO-Mega Holding 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.