Granted Patent
Utility
US 6,437,046 · App. 09/679,236
Low-acid ethylene copolymers for improving the adhesion of LDPE to aluminum foil in extrusion coating
Inventor:
Barry Alan Morris
Patented Case
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Granted: Aug 20, 2002
Filed: Oct 4, 2000
Inventor
Barry Alan Morris
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.