Granted Patent
Utility
US 5,758,970 · App. 08/647,886
Device and process for the simultaneous measurement of the extent and the temperature of a crack at the surface of an electrically conductive solid body
Inventor:
Jean Aubert
Patented Case
View Patent ↗
Granted: Jun 2, 1998
Filed: Jun 3, 1996
Inventor
Jean Aubert
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.