Granted Patent
Utility
US 5,365,890 · App. 08/128,840
Open beam sootblower
Inventors:
Jesse Johnston, James S. Kulig, Steven F. Lewis, Eric Collet
Patented Case
View Patent ↗
Granted: Nov 22, 1994
Filed: Sep 29, 1993
Inventors
Jesse Johnston
James S. Kulig
Steven F. Lewis
Eric Collet
Assignee (at issue)
The Babcock & Wilcox Company
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.