Granted Patent
Utility
US 4,731,166 · App. 06/929,923
Method of producing an adherent, smooth deposit of chromium on a nodular iron substrate
Inventor:
Allen R. Jones
Patented Case
View Patent ↗
Granted: Mar 15, 1988
Filed: Jan 12, 1986
Inventor
Allen R. Jones
Assignee (at issue)
M&T Chemicals, 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.