Granted Patent
Utility
US 5,904,957 · App. 08/945,325
Vapour phase chemical infiltration process for densifying porous substrates disposed in annular stacks
Inventors:
Francois Christin, Pierre Daubigny, Pierre Delaurens, Jean-Luc Leluan
Patented Case
View Patent ↗
Granted: May 18, 1999
Filed: Oct 15, 1997
Inventors
Francois Christin
Pierre Daubigny
Pierre Delaurens
Jean-Luc Leluan
Assignee (at issue)
Societe Europenne de Propulsion
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.