Granted Patent
Utility
US 4,581,258 · App. 06/711,741
Photopolymer coated lithographic printing plate
Inventors:
Frank L. Sharkozy, James A. Kiesler
Patented Case
View Patent ↗
Granted: Apr 8, 1986
Filed: Mar 14, 1985
Inventors
Frank L. Sharkozy
James A. Kiesler
Assignee (at issue)
Printing Developments, 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.