Granted Patent
Utility
US 6,800,149 · App. 10/284,625
Tapered corrosion protection of tubes at mud drum location
Inventor:
George H. Harth, III
Patented Case
View Patent ↗
Granted: Oct 5, 2004
Filed: Oct 31, 2002
Inventor
George H. Harth, III
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.