Granted Patent
Utility
US 5,330,869 · App. 08/114,728
Electrostatographic toner and developer compositions with phthalimide derivatives
Inventors:
John C. Wilson, Steven M. Bonser, Hans W. Osterhoudt
Patented Case
View Patent ↗
Granted: Jul 19, 1994
Filed: Aug 31, 1993
Inventors
John C. Wilson
Steven M. Bonser
Hans W. Osterhoudt
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.