Granted Patent
Utility
US 4,420,574 · App. 06/420,551
Ungelled polyepoxide-polyoxyalkylenepolyamine resins, aqueous dispersions thereof, and their use in cationic electrodeposition
Inventors:
Thomas C. Moriarity, William J. Geiger
Patented Case
View Patent ↗
Granted: Dec 13, 1983
Filed: Sep 20, 1982
Inventors
Thomas C. Moriarity
William J. Geiger
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.