Granted Patent
Utility
US 5,098,477 · App. 07/448,179
Inks, particularly for ink printing
Inventors:
Eric Vieira, Hugh Stephen Laver
Patented Case
View Patent ↗
Granted: Mar 24, 1992
Filed: Dec 8, 1989
Inventors
Eric Vieira
Hugh Stephen Laver
Assignee (at issue)
Ciba-Geigy
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.