Granted Patent
Utility
US 5,223,028 · App. 07/746,545
Waterfast aqueous inks
Inventors:
Rodney O. Aulick, Bradley Beach, Terence E. Franey, James Mrvos, Ann M. Piekunka, Jerry F. Stone
Patented Case
View Patent ↗
Granted: Jun 29, 1993
Filed: Aug 19, 1991
Inventors
Rodney O. Aulick
Bradley Beach
Terence E. Franey
James Mrvos
Ann M. Piekunka
Jerry F. Stone
Assignee (at issue)
Lexmark International, 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.