Granted Patent
Utility
US 5,409,528 · App. 08/174,556
Corrosion inhibitors for coatings
Inventor:
James F. Walther
Patented Case
View Patent ↗
Granted: Apr 25, 1995
Filed: Dec 28, 1993
Inventor
James F. Walther
Assignee (at issue)
General 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.