Granted Patent
Utility
US 5,412,734 · App. 08/120,187
Apparatus and method for reducing acoustic feedback
Inventor:
Samuel L. Thomasson
Patented Case
View Patent ↗
Granted: May 2, 1995
Filed: Sep 13, 1993
Inventor
Samuel L. Thomasson
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.