Granted Patent
Utility
US 4,254,163 · App. 06/029,951
Strippable resists
Inventor:
John R. Piazza
Patented Case
View Patent ↗
Granted: Mar 3, 1981
Filed: Apr 13, 1979
Inventor
John R. Piazza
Assignee (at issue)
Western Electric Company, 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.