Granted Patent
Utility
US 6,350,939 · App. 09/759,302
Neck block system for acoustic stringed instruments
Inventor:
Chris Griffiths
Patented Case
View Patent ↗
Granted: Feb 26, 2002
Filed: Jan 16, 2001
Inventor
Chris Griffiths
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.