Granted Patent
Utility
US 5,789,689 · App. 08/785,004
Tube modeling programmable digital guitar amplification system
Inventors:
Michel A. Doidic, Michael Mecca, Marcus Ryle, Curtis Senffner
Patented Case
View Patent ↗
Granted: Aug 4, 1998
Filed: Jan 17, 1997
Inventors
Michel A. Doidic
Michael Mecca
Marcus Ryle
Curtis Senffner
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.