Granted Patent
Utility
US 5,471,897 · App. 08/119,988
Saw sharpener
Inventor:
James L. Wright
Patented Case
View Patent ↗
Granted: Dec 5, 1995
Filed: Sep 10, 1993
Inventor
James L. Wright
Assignee (at issue)
Wright Machine Tool 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.