Granted Patent
Utility
US 4,971,837 · App. 07/333,352
Chip resistant coatings and methods of application
Inventors:
Jonathan T. Martz, Thomas W. Kelly, Rostyslaw Dowbenko, James A. Meier, Anthony C. Palermo
Patented Case
View Patent ↗
Granted: Nov 20, 1990
Filed: Apr 3, 1989
Inventors
Jonathan T. Martz
Thomas W. Kelly
Rostyslaw Dowbenko
James A. Meier
Anthony C. Palermo
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.