Granted Patent
Utility
US 6,443,818 · App. 09/554,416
Grinding machine
Inventor:
Russell Graham Bent
Patented Case
View Patent ↗
Granted: Sep 3, 2002
Filed: Jul 10, 2000
Inventor
Russell Graham Bent
Assignee (at issue)
Unova UK Limited
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.