Granted Patent
Utility
US 4,699,081 · App. 06/900,121
Means for detecting and adjusting metal salt concentration in an electroless plating bath
Inventor:
Howard S. Mack
Patented Case
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Granted: Oct 13, 1987
Filed: Aug 25, 1986
Inventor
Howard S. Mack
Assignee (at issue)
Harshaw/Filtrol Partnership
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.