Granted Patent
Utility
US 6,572,371 · App. 10/139,553
Gas preheater and process for controlling distribution of preheated reactive gas in a CVI furnace for densification of porous annular substrates
Inventors:
Eric Sion, Yvan Baudry
Patented Case
View Patent ↗
Granted: Jun 3, 2003
Filed: May 6, 2002
Inventors
Eric Sion
Yvan Baudry
Assignee (at issue)
MESSIER-BUGATTI
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.