Granted Patent
Utility
US 4,958,551 · App. 07/332,412
Computerized music notation system
Inventor:
Philip Lui
Patented Case
View Patent ↗
Granted: Sep 25, 1990
Filed: Mar 30, 1989
Inventor
Philip Lui
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.