Granted Patent
Utility
US 6,653,543 · App. 10/151,627
Musical instrument tuner with configurable display
Inventor:
Charles J. Kulas
Patented Case
View Patent ↗
Granted: Nov 25, 2003
Filed: May 16, 2002
Inventor
Charles J. Kulas
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.