Granted Patent
Utility
US 5,635,591 · App. 08/438,606
Process for making high viscosity ink resins
Inventors:
Theodore J. Williams, Robert R. Klein
Patented Case
View Patent ↗
Granted: Jun 3, 1997
Filed: May 10, 1995
Inventors
Theodore J. Williams
Robert R. Klein
Assignee (at issue)
Arizona Chemical Company, LLC
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.