Granted Patent
Utility
US 5,194,217 · App. 07/819,249
Articulated sludge lance with a movable extension nozzle
Inventors:
Daniel M. St. Louis, William G. Schneider
Patented Case
View Patent ↗
Granted: Mar 16, 1993
Filed: Jan 10, 1992
Inventors
Daniel M. St. Louis
William G. Schneider
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.