Granted Patent
Utility
US 6,790,245 · App. 10/265,973
Control of dust
Inventors:
Andrew R. Wolff, Joseph P. Pircon, Mark Freetly
Patented Case
View Patent ↗
Granted: Sep 14, 2004
Filed: Oct 7, 2002
Inventors
Andrew R. Wolff
Joseph P. Pircon
Mark Freetly
Assignee (at issue)
Benetech, 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.