Granted Patent
Utility
US 6,520,440 · App. 09/885,635
Arrangement facilitating single fastener attachment for strikers of a wood comminuting rotor
Inventor:
Anders RAGNARSSON
Patented Case
View Patent ↗
Granted: Feb 18, 2003
Filed: Jun 20, 2001
Inventor
Anders RAGNARSSON
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.