Granted Patent
Utility
US 5,770,033 · App. 08/883,262
Methods and apparatus for using gas and liquid phase cathodic depolarizers
Inventors:
Oliver J. Murphy, G. Duncan Hitchens
Patented Case
View Patent ↗
Granted: Jun 23, 1998
Filed: Jun 26, 1997
Inventors
Oliver J. Murphy
G. Duncan Hitchens
Assignee (at issue)
Lynntech, Inc.
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.