Granted Patent
Utility
US 5,330,607 · App. 07/938,303
Sacrificial metal etchback system
Inventor:
Ronald S. Nowicki
Patented Case
View Patent ↗
Granted: Jul 19, 1994
Filed: Aug 27, 1992
Inventor
Ronald S. Nowicki
Assignee (at issue)
Genus, 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.