Granted Patent
Utility
US 5,494,504 · App. 08/304,049
Liquid rinse conditioner for phosphate conversion coatings
Inventor:
Angela Wright
Patented Case
View Patent ↗
Granted: Feb 27, 1996
Filed: Sep 12, 1994
Inventor
Angela Wright
Assignee (at issue)
PPG Industries, 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.