Granted Patent
Utility
US 4,229,284 · App. 05/905,814
Corrosion control method using methoxypropylamine (mopa) in water-free petroleum and petrochemical process units
Inventors:
James A. White, Thomas C. Maynard
Patented Case
View Patent ↗
Granted: Oct 21, 1980
Filed: May 15, 1978
Inventors
James A. White
Thomas C. Maynard
Assignee (at issue)
Nalco Chemical Company
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.