Granted Patent
Utility
US 6,442,279 · App. 09/687,799
Acoustic conditioner
Inventors:
David A. Preves, Robert L. Millier, Lawrence T. Hagen, Ning Shen
Patented Case
View Patent ↗
Granted: Aug 27, 2002
Filed: Oct 13, 2000
Inventors
David A. Preves
Robert L. Millier
Lawrence T. Hagen
Ning Shen
Assignee (at issue)
Micro Ear Technology, 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.