Granted Patent
Utility
US 6,722,594 · App. 09/792,061
Pulveriser and method of pulverising
Inventor:
William Graham
Patented Case
View Patent ↗
Granted: Apr 20, 2004
Filed: Feb 26, 2001
Inventor
William Graham
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.