Granted Patent
Utility
US 6,648,633 · App. 10/261,027
Apparatus for cleaning a coiler furnace drum
Inventors:
Michael SUCHAN, Russell J. Brooks, Glen Banowetz
Patented Case
View Patent ↗
Granted: Nov 18, 2003
Filed: Sep 30, 2002
Inventors
Michael SUCHAN
Russell J. Brooks
Glen Banowetz
Assignee (at issue)
IPSCO Enterprises, 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.