Granted Patent
Utility
US 5,796,055 · App. 08/783,596
Sound absorbing article and method of making same
Inventors:
Vernon C. Benson, Jr., Glenn Freeman
Patented Case
View Patent ↗
Granted: Aug 18, 1998
Filed: Jan 13, 1997
Inventors
Vernon C. Benson, Jr.
Glenn Freeman
Assignee (at issue)
PPG 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.