Granted Patent
Utility
US 5,703,185 · App. 08/685,083
Fluoropolymer extrusion process
Inventor:
Leslie Mitchell Blair
Patented Case
View Patent ↗
Granted: Dec 30, 1997
Filed: Jul 23, 1996
Inventor
Leslie Mitchell Blair
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.