Granted Patent
Utility
US 5,061,607 · App. 07/479,917
Composition for protecting the surface of lithographic printing plates
Inventor:
John E. Walls
Patented Case
View Patent ↗
Granted: Oct 29, 1991
Filed: Feb 13, 1990
Inventor
John E. Walls
Assignee (at issue)
EASTMAN KODAK COMPANY
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.