Granted Patent
Utility
US 5,124,223 · App. 07/609,275
Magnetic carrier cores coated with perfluorinated Werner complexes and developers containing the same
Inventor:
William E. Yoerger
Patented Case
View Patent ↗
Granted: Jun 23, 1992
Filed: Nov 5, 1990
Inventor
William E. Yoerger
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.