Granted Patent
Utility
US 6,252,967 · App. 09/234,731
Reducing acoustic feedback with digital modulation
Inventors:
Kendall G. Moore, Samuel L. Thomasson, Richard W. Ulmer
Patented Case
View Patent ↗
Granted: Jun 26, 2001
Filed: Jan 21, 1999
Inventors
Kendall G. Moore
Samuel L. Thomasson
Richard W. Ulmer
Assignee (at issue)
Acoustic Technologies, Inc.
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.