Granted Patent
Utility
US 4,822,685 · App. 07/130,923
Method for preparing multi-layered coated articles and the coated articles prepared by the method
Inventors:
Leon A. Perez, Marvis E. Hartman, Naomi R. Suss
Patented Case
View Patent ↗
Granted: Apr 18, 1989
Filed: Dec 10, 1987
Inventors
Leon A. Perez
Marvis E. Hartman
Naomi R. Suss
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.