Granted Patent
Utility
US 5,932,021 · App. 08/859,081
Aqueous cleaning composition for removing flux and method of use
Inventors:
Francis R. Cala, Richard A. Reynolds
Patented Case
View Patent ↗
Granted: Aug 3, 1999
Filed: May 20, 1997
Inventors
Francis R. Cala
Richard A. Reynolds
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.