Granted Patent
Utility
US 5,753,316 · App. 08/782,972
Treatment of metal parts to provide improved sealcoat coatings
Inventors:
Randall J. Brent, Robert Daniel Anthony
Patented Case
View Patent ↗
Granted: May 19, 1998
Filed: Jan 14, 1997
Inventors
Randall J. Brent
Robert Daniel Anthony
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.