Granted Patent
Utility
US 5,698,769 · App. 08/649,786
Method and apparatus for finish surface testing
Inventor:
Charles J. Hupf
Patented Case
View Patent ↗
Granted: Dec 16, 1997
Filed: May 17, 1996
Inventor
Charles J. Hupf
Assignee (at issue)
Regal Ware, 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.