Granted Patent
Utility
US 6,608,155 · App. 09/003,879
Metal halide solid acids and supported metal halides as catalysts for the preparation of hydrocarbon resins
Inventors:
Laura M. Babcock, Dennis G. Morrell
Patented Case
View Patent ↗
Granted: Aug 19, 2003
Filed: Jan 7, 1998
Inventors
Laura M. Babcock
Dennis G. Morrell
Assignee (at issue)
Eastman Chemical Resins, 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.