Granted Patent
Utility
US 5,260,135 · App. 07/745,797
Photodegradation-resistant electrodepositable primer compositions
Inventors:
Victor G. Corrigan, Gerald W. Gruber, Michael A. Polack, Robert R. Zwack
Patented Case
View Patent ↗
Granted: Nov 9, 1993
Filed: Aug 16, 1991
Inventors
Victor G. Corrigan
Gerald W. Gruber
Michael A. Polack
Robert R. Zwack
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.