Granted Patent
Utility
US 4,297,261 · App. 06/162,225
Cationic polymers and their use in electrodeposition
Inventor:
Edward L. Jozwiak, Jr.
Patented Case
View Patent ↗
Granted: Oct 27, 1981
Filed: Jun 23, 1980
Inventor
Edward L. Jozwiak, Jr.
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.