Granted Patent
Utility
US 5,300,326 · App. 08/103,386
Method of coating a plastic substrate with an aqueous coating composition for plastic substrates
Inventors:
Edward W. Zezinka, Susan K. Vicha, Charles M. Kania
Patented Case
View Patent ↗
Granted: Apr 5, 1994
Filed: Aug 9, 1993
Inventors
Edward W. Zezinka
Susan K. Vicha
Charles M. Kania
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.