Granted Patent
Utility
US 4,898,657 · App. 07/371,634
Electroplating apparatus for plate-shaped workpieces
Inventor:
Daniel Hosten
Patented Case
View Patent ↗
Granted: Feb 6, 1990
Filed: Jun 26, 1989
Inventor
Daniel Hosten
Assignee (at issue)
Siemens Aktiengesellschaft
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.