Granted Patent
Utility
US 5,368,775 · App. 08/074,082
Corrosion control composition and method for boiler/condensate steam system
Inventors:
Anthony M. Rossi, Alexander C. Mc Donald
Patented Case
View Patent ↗
Granted: Nov 29, 1994
Filed: Jun 8, 1993
Inventors
Anthony M. Rossi
Alexander C. Mc Donald
Assignee (at issue)
Betz Laboratories, 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.