Granted Patent
Utility
US 4,921,899 · App. 07/256,344
Ink composition containing a blend of a polyester, an acrylic polymer and a vinyl polymer
Inventors:
Hieu Phan, Gary T. Clark
Patented Case
View Patent ↗
Granted: May 1, 1990
Filed: Oct 11, 1988
Inventors
Hieu Phan
Gary T. Clark
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.