Granted Patent
Utility
US 4,480,461 · App. 06/478,432
Vibration instrument
Inventor:
Joseph J. Ponzi
Patented Case
View Patent ↗
Granted: Nov 6, 1984
Filed: Mar 24, 1983
Inventor
Joseph J. Ponzi
Assignee (at issue)
International Telephone and Telegraph Corporation
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.