Granted Patent
Utility
US 6,594,365 · App. 09/195,294
Acoustic system identification using acoustic masking
Inventor:
Graham P. Eatwell
Patented Case
View Patent ↗
Granted: Jul 15, 2003
Filed: Nov 18, 1998
Inventor
Graham P. Eatwell
Assignee (at issue)
Tenneco Automotive Operating Company LLC
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.