Granted Patent
Utility
US 5,111,217 · App. 07/451,898
Dot printer and method for grey level recording
Inventor:
Eric K. Zeise
Patented Case
View Patent ↗
Granted: May 5, 1992
Filed: Dec 18, 1989
Inventor
Eric K. Zeise
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.