Granted Patent
Utility
US 6,004,448 · App. 08/487,437
Deposition of chromium oxides from a trivalent chromium solution containing a complexing agent for a buffer
Inventor:
Nicholas M. Martyak
Patented Case
View Patent ↗
Granted: Dec 21, 1999
Filed: Jun 7, 1995
Inventor
Nicholas M. Martyak
Assignee (at issue)
Atotech USA, 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.