Granted Patent
Utility
US 4,402,847 · App. 06/379,641
High lead solder corrosion inhibitors
Inventors:
Joe C. Wilson, Stanley T. Hirozawa
Patented Case
View Patent ↗
Granted: Sep 6, 1983
Filed: May 19, 1982
Inventors
Joe C. Wilson
Stanley T. Hirozawa
Assignee (at issue)
BASF Wyandotte Corporation
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.