Granted Patent
Utility
US 5,692,879 · App. 08/717,193
Control device for a stage of blades with variable pitch
Inventor:
Jean-Louis Charbonnel
Patented Case
View Patent ↗
Granted: Dec 2, 1997
Filed: Sep 20, 1996
Inventor
Jean-Louis Charbonnel
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.