Granted Patent
Utility
US 5,956,293 · App. 08/863,986
Flexural plate sound transducer having low resonant frequency
Inventor:
Timothy P. Rorick
Patented Case
View Patent ↗
Granted: Sep 21, 1999
Filed: May 27, 1997
Inventor
Timothy P. Rorick
Assignee (at issue)
Raytheon 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.