Granted Patent
Utility
US 5,679,138 · App. 08/565,270
Ink jet inks containing nanoparticles of organic pigments
Inventors:
John F. Bishop, David Czekai
Patented Case
View Patent ↗
Granted: Oct 21, 1997
Filed: Nov 30, 1995
Inventors
John F. Bishop
David Czekai
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.