Granted Patent
Utility
US 5,719,000 · App. 08/816,098
Bis1,2-benzisothiazol-3(2H)-ylidene 1,1-dioxide cyanoacetates! for electrostatographic toners and developers
Inventors:
John C. Wilson, Robert D. Fields
Patented Case
View Patent ↗
Granted: Feb 17, 1998
Filed: Mar 14, 1997
Inventors
John C. Wilson
Robert D. Fields
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.