Granted Patent
Utility
US 6,764,034 · App. 10/097,299
Grinding mill
Inventor:
Christopher George Kelsey
Patented Case
View Patent ↗
Granted: Jul 20, 2004
Filed: Mar 15, 2002
Inventor
Christopher George Kelsey
Assignee (at issue)
EDI Rail Pty Ltd
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.