Granted Patent
Utility
US 4,410,364 · App. 06/313,032
Printing ink compositions
Inventors:
Claude M. Finlayson, Wilbur Mardis
Patented Case
View Patent ↗
Granted: Oct 18, 1983
Filed: Oct 19, 1981
Inventors
Claude M. Finlayson
Wilbur Mardis
Assignee (at issue)
NL Industries, Inc.
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.