Granted Patent
Utility
US 5,460,566 · App. 08/016,724
Vibrating abrasive cleaning apparatus and method
Inventor:
Joe O. Trahan
Patented Case
View Patent ↗
Granted: Oct 24, 1995
Filed: Feb 11, 1993
Inventor
Joe O. Trahan
Assignee (at issue)
Drilltech Technologies, Inc.
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.