Granted Patent
Utility
US 6,524,671 · App. 09/041,323
Coextruded fluoropolymer/polyamide laminate
Inventor:
Peter Dwight Spohn
Patented Case
View Patent ↗
Granted: Feb 25, 2003
Filed: Mar 12, 1998
Inventor
Peter Dwight Spohn
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.