Granted Patent
Utility
US 5,642,621 · App. 08/561,275
Dual head combustion chamber
Inventors:
Jean-Paul D. Alary, Denis R. H. Ansart, Yves Salan, Denis Jean Maurice Sandelis
Patented Case
View Patent ↗
Granted: Jul 1, 1997
Filed: Nov 21, 1995
Inventors
Jean-Paul D. Alary
Denis R. H. Ansart
Yves Salan
Denis Jean Maurice Sandelis
Assignee (at issue)
Socoiete 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.