Granted Patent
Utility
US 4,503,811 · App. 06/543,784
Method and apparatus for removing deposits from highly heated surfaces
Inventor:
Charles W. Hammond
Patented Case
View Patent ↗
Granted: Mar 12, 1985
Filed: Oct 20, 1983
Inventor
Charles W. Hammond
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.