Granted Patent
Utility
US 5,885,487 · App. 08/920,276
Corrosion inhibitor for alkanolamine units
Inventor:
Ljiljana V. Minevski
Patented Case
View Patent ↗
Granted: Mar 23, 1999
Filed: Aug 22, 1997
Inventor
Ljiljana V. Minevski
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.