Granted Patent
Utility
US 5,489,344 · App. 08/296,078
Passivation of carbon steel using encapsulated oxygen
Inventors:
Donald T. Martin, Larry Paul, Neil Carpenter
Patented Case
View Patent ↗
Granted: Feb 6, 1996
Filed: Aug 25, 1994
Inventors
Donald T. Martin
Larry Paul
Neil Carpenter
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.