Granted Patent
Utility
US 4,843,885 · App. 07/168,975
Acoustic detection of bearing defects
Inventor:
Joseph E. Bambara
Patented Case
View Patent ↗
Granted: Jul 4, 1989
Filed: Mar 16, 1988
Inventor
Joseph E. Bambara
Assignee (at issue)
Servo Corporation of America
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.