Granted Patent
Utility
US 6,777,472 · App. 09/558,894
Highly-neutralized ethylene copolymers
Inventors:
Robert J. Statz, John Chu Chen
Patented Case
View Patent ↗
Granted: Aug 17, 2004
Filed: Apr 27, 2000
Inventors
Robert J. Statz
John Chu Chen
Assignee (at issue)
E.I. DU PONT DE NEMOURS AND COMPANY
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.