Granted Patent
Utility
US 5,798,145 · App. 08/586,053
Flexible aminoplast-curable film-forming compositions providing films having resistance to acid etching
Inventors:
Steven V. Barancyk, Christopher A. Verardi, William A. Humphrey
Patented Case
View Patent ↗
Granted: Aug 25, 1998
Filed: Jan 16, 1996
Inventors
Steven V. Barancyk
Christopher A. Verardi
William A. Humphrey
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.