Granted Patent
Utility
US 5,017,267 · App. 07/554,126
Composition and method for stripping tin or tin-lead alloy from copper surfaces
Inventor:
John L. Cordani
Patented Case
View Patent ↗
Granted: May 21, 1991
Filed: Jul 17, 1990
Inventor
John L. Cordani
Assignee (at issue)
MacDermid, Incorporated
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.