Granted Patent
Utility
US 5,744,274 · App. 08/644,757
N-(2-cyanoethenyl)sulfonamides having two functionalities and toner compositions containing them
Inventors:
John C. Wilson, Peter S. Alexandrovich
Patented Case
View Patent ↗
Granted: Apr 28, 1998
Filed: May 10, 1996
Inventors
John C. Wilson
Peter S. Alexandrovich
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.