Granted Patent
Utility
US 5,472,585 · App. 08/346,949
Regeneration of spent electroless copper plating solution
Inventors:
Donald Dinella, Sudarshan Lal, David A. Nicol
Patented Case
View Patent ↗
Granted: Dec 5, 1995
Filed: Nov 30, 1994
Inventors
Donald Dinella
Sudarshan Lal
David A. Nicol
Assignee (at issue)
AT&T CORP.
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.