Granted Patent
Utility
US 4,470,890 · App. 06/332,907
Method for preventing cathode corrosion
Inventors:
Tilak V. Bommaraju, Krishnan Viswanathan
Patented Case
View Patent ↗
Granted: Sep 11, 1984
Filed: Dec 21, 1981
Inventors
Tilak V. Bommaraju
Krishnan Viswanathan
Assignee (at issue)
Occidental Chemical 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.