Granted Patent
Utility
US 6,199,423 · App. 09/443,520
Apparatus and methods for performing acoustical measurements
Inventors:
Raymond C. Logue, Don N. Sirota, Patrick S. Lee
Patented Case
View Patent ↗
Granted: Mar 13, 2001
Filed: Nov 19, 1999
Inventors
Raymond C. Logue
Don N. Sirota
Patrick S. Lee
Assignee (at issue)
Lorex Industries, 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.