Granted Patent
Utility
US 5,399,640 · App. 08/245,326
Polymerization of liquid tetrafluoroethylene in aqueous dispersion
Inventor:
David E. Hazlebeck
Patented Case
View Patent ↗
Granted: Mar 21, 1995
Filed: May 18, 1994
Inventor
David E. Hazlebeck
Assignee (at issue)
W. L. Gore & Associates, Inc.
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.