Granted Patent
Utility
US 5,240,034 · App. 07/943,695
Safety and automatic stop device, in particular for gas expansion stations
Inventor:
Jean-Philippe Cornil
Patented Case
View Patent ↗
Granted: Aug 31, 1993
Filed: Sep 11, 1992
Inventor
Jean-Philippe Cornil
Assignee (at issue)
Gaz de France
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.