Granted Patent
Utility
US 6,228,444 · App. 08/842,620
Method of making tubes out of composite material having high tribological and mechanical characteristics
Inventors:
Peter Wolki, Emmanuel Edeline, Jean-Francois Cretegny
Patented Case
View Patent ↗
Granted: May 8, 2001
Filed: Apr 15, 1997
Inventors
Peter Wolki
Emmanuel Edeline
Jean-Francois Cretegny
Assignee (at issue)
Societe Nationale d'Etude et de Construction de Moteurs d'Aviation - S.N.E.C.M.A
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.