Granted Patent
Utility
US 4,543,167 · App. 06/576,778
Control of anode gas evolution in trivalent chromium plating bath
Inventors:
Edgar J. Seyb, Jr., Laurence A. Brown
Patented Case
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Granted: Sep 24, 1985
Filed: Feb 3, 1984
Inventors
Edgar J. Seyb, Jr.
Laurence A. Brown
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.