Granted Patent
Utility
US 5,952,621 · App. 09/060,070
Sound attenuation system and related method
Inventors:
Alan Robert Douglas Curtis, Richard Madden, Paul J. Remington
Patented Case
View Patent ↗
Granted: Sep 14, 1999
Filed: Apr 15, 1998
Inventors
Alan Robert Douglas Curtis
Richard Madden
Paul J. Remington
Assignee (at issue)
GTE Internetworking Incorporated
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.