Granted Patent
Utility
US 6,716,532 · App. 10/318,029
Heat treatable coated articles with metal nitride layer and methods of making same
Inventors:
George A. Neuman, Grzegorz Stachowiak, Hong Wang
Patented Case
View Patent ↗
Granted: Apr 6, 2004
Filed: Dec 13, 2002
Inventors
George A. Neuman
Grzegorz Stachowiak
Hong Wang
Assignee (at issue)
Guardian Industries Corp.
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.