Granted Patent
Utility
US 5,120,482 · App. 07/658,790
Process of using thermoplastic paste for the production of foundry mold cores
Inventor:
Jean-Pierre Flochel
Patented Case
View Patent ↗
Granted: Jun 9, 1992
Filed: Feb 21, 1991
Inventor
Jean-Pierre Flochel
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.