Granted Patent
Utility
US 5,611,911 · App. 08/587,439
High temperature corrosion inhibitor
Inventor:
James G. Edmondson
Patented Case
View Patent ↗
Granted: Mar 18, 1997
Filed: Jan 17, 1996
Inventor
James G. Edmondson
Assignee (at issue)
Betzdearborn, 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.