Granted Patent
Utility
US 5,674,967 · App. 08/727,698
Water repellent surface treatment with integrated primer
Inventor:
George B. Goodwin
Patented Case
View Patent ↗
Granted: Oct 7, 1997
Filed: Sep 23, 1996
Inventor
George B. Goodwin
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.