Granted Patent
Utility
US 5,253,419 · App. 08/000,581
Method of manufacturing a hollow blade for a turboshaft engine
Inventors:
Andre Collot, Bernard P. C. Sohier, Danilo Varela
Patented Case
View Patent ↗
Granted: Oct 19, 1993
Filed: Jan 4, 1993
Inventors
Andre Collot
Bernard P. C. Sohier
Danilo Varela
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.