Granted Patent
Utility
US 5,035,982 · App. 07/379,823
Aqueous developer composition for developing negative working lithographic printing plate
Inventor:
John E. Walls
Patented Case
View Patent ↗
Granted: Jul 30, 1991
Filed: Jul 14, 1989
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.