Granted Patent
Utility
US 4,818,072 · App. 07/193,005
Method for remotely detecting an electric field using a liquid crystal device
Inventor:
Manoochehr Mohebban
Patented Case
View Patent ↗
Granted: Apr 4, 1989
Filed: Mar 18, 1988
Inventor
Manoochehr Mohebban
Assignee (at issue)
Raychem 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.