Granted Patent
Utility
US 5,019,342 · App. 07/427,287
Method for mitigation of caustic corrosion in coordinated phosphate/ph treatment programs for boilers
Inventors:
John A. Muccitelli, Nancy Feldman
Patented Case
View Patent ↗
Granted: May 28, 1991
Filed: Oct 25, 1989
Inventors
John A. Muccitelli
Nancy Feldman
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.