Granted Patent
Utility
US 6,672,425 · App. 10/205,295
Noise abatement module
Inventor:
Clint B. Simmons
Patented Case
View Patent ↗
Granted: Jan 6, 2004
Filed: Jul 24, 2002
Inventor
Clint B. Simmons
Assignee (at issue)
Onyx Industrial Services, 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.