Granted Patent
Utility
US 5,169,898 · App. 07/738,090
Acid-substituted ternary acetal polymers useful in photosensitive compositions and lithographic printing plates
Inventors:
John E. Walls, Larry D. LeBoeuf
Patented Case
View Patent ↗
Granted: Dec 8, 1992
Filed: Jul 30, 1991
Inventors
John E. Walls
Larry D. LeBoeuf
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.