Granted Patent
Utility
US 4,857,233 · App. 07/199,196
Nickel particle plating system
Inventors:
Robert J. Teichmann, James F. Walther
Patented Case
View Patent ↗
Granted: Aug 15, 1989
Filed: May 26, 1988
Inventors
Robert J. Teichmann
James F. Walther
Assignee (at issue)
Potters Industries, LLC
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.