Granted Patent
Utility
US 4,680,204 · App. 06/879,767
Color plus clear coating system utilizing inorganic microparticles
Inventors:
Suryya K. Das, Jerome A. Seiner, Paul P. Greigger, James E. Jones, Raymond F. Schappert, William G. Boberski
Patented Case
View Patent ↗
Granted: Jul 14, 1987
Filed: Jun 27, 1986
Inventors
Suryya K. Das
Jerome A. Seiner
Paul P. Greigger
James E. Jones
Raymond F. Schappert
William G. Boberski
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.