Granted Patent
Utility
US 6,255,572 · App. 09/504,422
Rattling percussion instrument
Inventors:
Akbar Moghaddam, Donald G. Lombardi
Patented Case
View Patent ↗
Granted: Jul 3, 2001
Filed: Feb 15, 2000
Inventors
Akbar Moghaddam
Donald G. Lombardi
Assignee (at issue)
Drum Workshop, Inc.
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.