Granted Patent
Utility
US 5,514,219 · App. 08/354,394
Articulated annular sludge lance
Inventor:
Frank Kamler
Patented Case
View Patent ↗
Granted: May 7, 1996
Filed: Dec 12, 1994
Inventor
Frank Kamler
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.