Granted Patent
Utility
US 5,237,875 · App. 07/677,163
Metal fatigue detector
Inventor:
Raymond C. de la Veaux
Patented Case
View Patent ↗
Granted: Aug 24, 1993
Filed: Mar 29, 1991
Inventor
Raymond C. de la Veaux
Assignee (at issue)
Tensiodyne Corporation
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.