Granted Patent
Utility
US 4,570,616 · App. 06/702,528
Vibrator massager using beat frequency
Inventors:
Raymond W. Kunz, Gerald K. Pitcher
Patented Case
View Patent ↗
Granted: Feb 18, 1986
Filed: Feb 19, 1985
Inventors
Raymond W. Kunz
Gerald K. Pitcher
Assignee (at issue)
Clairol Incorporated
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.