Granted Patent
Utility
US 6,409,867 · App. 09/463,020
Extrusion of polymer-based cell components
Inventors:
Esam Kronfli, Neville John Mattingley
Patented Case
View Patent ↗
Granted: Jun 25, 2002
Filed: Jan 19, 2000
Inventors
Esam Kronfli
Neville John Mattingley
Assignee (at issue)
Accentus plc
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.