Granted Patent
Utility
US 6,023,404 · App. 09/089,443
Method of monitoring and diagnosing the operation of high voltage electrical apparatus
Inventor:
Jean Marmonier
Patented Case
View Patent ↗
Granted: Feb 8, 2000
Filed: Jun 3, 1998
Inventor
Jean Marmonier
Assignee (at issue)
GEC Alsthom T&D SA
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.