Granted Patent
Utility
US 6,808,439 · App. 10/053,236
Vibratory finisher with blasting nozzle
Inventor:
Steven Carpenter
Patented Case
View Patent ↗
Granted: Oct 26, 2004
Filed: Nov 9, 2001
Inventor
Steven Carpenter
Assignee (at issue)
Roto-Finish Company, 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.