Granted Patent
Utility
US 6,312,823 · App. 09/162,523
Compostable multilayer structures, methods for manufacture and articles prepared therefrom
Inventors:
Ali El-Afandi, Patrick R. Gruber, Jeffrey John Kolstad, James Lunt, Christopher M. Ryan, James Nangeroni, Nancy Uzelac Buehler, Mark Hartmann, Jed Richard Randall, Andrea L. Brosch
Patented Case
View Patent ↗
Granted: Nov 6, 2001
Filed: Sep 29, 1998
Inventors
Ali El-Afandi
Patrick R. Gruber
Jeffrey John Kolstad
James Lunt
Christopher M. Ryan
James Nangeroni
Nancy Uzelac Buehler
Mark Hartmann
Jed Richard Randall
Andrea L. Brosch
Assignee (at issue)
Cargill, Incorporated
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.