Granted Patent
Utility
US 6,199,434 · App. 09/082,226
Compact device for metering gas at variable pressure
Inventors:
Jean-Philippe Cornil, Dominique Dutertre, Laurent Mode, Vincent De Laharpe
Patented Case
View Patent ↗
Granted: Mar 13, 2001
Filed: May 20, 1998
Inventors
Jean-Philippe Cornil
Dominique Dutertre
Laurent Mode
Vincent De Laharpe
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.