Granted Patent
Utility
US 5,774,423 · App. 08/573,009
Acoustic sensor and array thereof
Inventors:
Richard E. Pearce, Richard C. Farris
Patented Case
View Patent ↗
Granted: Jun 30, 1998
Filed: Dec 15, 1995
Inventors
Richard E. Pearce
Richard C. Farris
Assignee (at issue)
Innovative Transducers, 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.