Granted Patent
Utility
US 4,675,215 · App. 06/781,267
Method and composition for the inhibition of corrosion
Inventors:
Stanley J. Ciuba, Michael Bartelme
Patented Case
View Patent ↗
Granted: Jun 23, 1987
Filed: Sep 27, 1985
Inventors
Stanley J. Ciuba
Michael Bartelme
Assignee (at issue)
Economics Laboratory, Inc.
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.