Granted Patent
Utility
US 4,478,650 · App. 06/543,649
Water soluble flux
Inventor:
Frank M. Zado
Patented Case
View Patent ↗
Granted: Oct 23, 1984
Filed: Oct 19, 1983
Inventor
Frank M. Zado
Assignee (at issue)
AT&T Technologies 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.