Granted Patent
Utility
US 5,750,604 · App. 08/672,609
Phase change ink formulation using a urethane isocyanate-derived resin
Inventors:
Jeffery H. Banning, Clifford R. King, Loc V. Bui, Donald R. Titterington
Patented Case
View Patent ↗
Granted: May 12, 1998
Filed: Jun 28, 1996
Inventors
Jeffery H. Banning
Clifford R. King
Loc V. Bui
Donald R. Titterington
Assignee (at issue)
Tektronix, 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.