Granted Patent
Utility
US 5,030,513 · App. 07/344,172
Paint composites
Inventor:
Marvis E. Hartman
Patented Case
View Patent ↗
Granted: Jul 9, 1991
Filed: Apr 27, 1989
Inventor
Marvis E. Hartman
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.