Granted Patent
Utility
US 4,311,662 · App. 05/877,055
Corrosion inhibitor for highly oxygenated systems
Inventor:
Thomas J. Bellos
Patented Case
View Patent ↗
Granted: Jan 19, 1982
Filed: Feb 13, 1978
Inventor
Thomas J. Bellos
Assignee (at issue)
Petrolite Corporation
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.