Granted Patent
Utility
US 6,780,474 · App. 10/227,896
Thermally sprayed chromium nitride coating
Inventors:
Thomas J. Smith, Thomas Stong
Patented Case
View Patent ↗
Granted: Aug 24, 2004
Filed: Aug 26, 2002
Inventors
Thomas J. Smith
Thomas Stong
Assignee (at issue)
DANA LIMITED
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.