Granted Patent
Utility
US 5,779,944 · App. 08/948,914
Water dispersible perfluoroether polymer encapsulates
Inventor:
Stephen L. Kopolow
Patented Case
View Patent ↗
Granted: Jul 14, 1998
Filed: Oct 10, 1997
Inventor
Stephen L. Kopolow
Assignee (at issue)
ISP INVESTMENTS LLC
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.