Granted Patent
Utility
US 5,811,481 · App. 08/479,278
Lithographic ink
Inventors:
Robert Howard Boutier, Jr., Bruce K. McEuen, Michael F. Heilman
Patented Case
View Patent ↗
Granted: Sep 22, 1998
Filed: Jun 7, 1995
Inventors
Robert Howard Boutier, Jr.
Bruce K. McEuen
Michael F. Heilman
Assignee (at issue)
Elf Atochem North America, 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.