Granted Patent
Utility
US 6,119,807 · App. 09/084,143
Sound absorbing article and method of making same
Inventors:
Vernon C. Benson, Jr., Glenn Freeman
Patented Case
View Patent ↗
Granted: Sep 19, 2000
Filed: May 26, 1998
Inventors
Vernon C. Benson, Jr.
Glenn Freeman
Assignee (at issue)
PPG Industries Ohio, 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.