Granted Patent
Utility
US 6,090,180 · App. 09/124,609
Cupola emission control system and method
Inventors:
Robert G. Peting, Gregory K. Qualizza, Craig McNally, Mitchell Kidd
Patented Case
View Patent ↗
Granted: Jul 18, 2000
Filed: Jul 29, 1998
Inventors
Robert G. Peting
Gregory K. Qualizza
Craig McNally
Mitchell Kidd
Assignee (at issue)
AMSTED INDUSTRIES INCORPORATED
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.