Granted Patent
Utility
US 5,693,873 · App. 08/598,192
Method and a system for determining the density of an insulating gas in an electrical apparatus
Inventors:
Edmond Thuries, Jean-Pierre Dupraz
Patented Case
View Patent ↗
Granted: Dec 2, 1997
Filed: Feb 7, 1996
Inventors
Edmond Thuries
Jean-Pierre Dupraz
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.