Granted Patent
Utility
US 6,136,933 · App. 09/409,314
Process for polymerizing tetrafluoroethylene
Inventor:
Clay Woodward Jones
Patented Case
View Patent ↗
Granted: Oct 24, 2000
Filed: Sep 29, 1999
Inventor
Clay Woodward Jones
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.