Granted Patent
Utility
US 6,284,335 · App. 09/521,535
Structures incorporating blends of grafted fluoropolymer and polyamide
Inventor:
Peter Dwight Spohn
Patented Case
View Patent ↗
Granted: Sep 4, 2001
Filed: Mar 8, 2000
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.