Granted Patent
Utility
US 5,852,150 · App. 08/973,382
Base resistant fluorinated polymers
Inventor:
Paul Gregory Bekiarian
Patented Case
View Patent ↗
Granted: Dec 22, 1998
Filed: Dec 3, 1997
Inventor
Paul Gregory Bekiarian
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.