Granted Patent
Utility
US 4,151,569 · App. 05/668,651
Positionable transducer mounting structure using a piezoelectric bender element
Inventor:
Richard A. Hathaway
Patented Case
View Patent ↗
Granted: Apr 24, 1979
Filed: Mar 19, 1976
Inventor
Richard A. Hathaway
Assignee (at issue)
Ampex 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.