Granted Patent
Utility
US 5,198,320 · App. 07/814,152
Electrostatographic toner comprising binder polymer containing charge-control moieties and their preparation
Inventors:
William B. Vreeland, Dinesh Tyagi, Zona R. Pierce
Patented Case
View Patent ↗
Granted: Mar 30, 1993
Filed: Dec 30, 1991
Inventors
William B. Vreeland
Dinesh Tyagi
Zona R. Pierce
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.