Granted Patent
Utility
US 4,428,270 · App. 06/321,733
Electronic vibrato or celeste
Inventor:
Anthony C. Ippolito
Patented Case
View Patent ↗
Granted: Jan 31, 1984
Filed: Nov 16, 1981
Inventor
Anthony C. Ippolito
Assignee (at issue)
The Wurlitzer Company
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.