Granted Patent
Utility
US 5,073,448 · App. 07/450,135
Recording materials for ink-jet printing
Inventors:
Eric Vieira, Hugh Stephen Laver
Patented Case
View Patent ↗
Granted: Dec 17, 1991
Filed: Dec 12, 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.