Granted Patent
Utility
US 6,605,680 · App. 09/545,310
Low color, aromatic modified C5 hydrocarbon resins
Inventors:
Chretien P. L. C. Donker, Ester E. C.G. Gielens, Gerard A. Verrijzer
Patented Case
View Patent ↗
Granted: Aug 12, 2003
Filed: Apr 7, 2000
Inventors
Chretien P. L. C. Donker
Ester E. C.G. Gielens
Gerard A. Verrijzer
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.