Granted Patent
Utility
US 5,643,502 · App. 08/220,276
High strength conductive polymers containing carbon fibrils
Inventors:
Paul Nahass, Stephen O. Friend, Robert W. Hausslein
Patented Case
View Patent ↗
Granted: Jul 1, 1997
Filed: Mar 30, 1994
Inventors
Paul Nahass
Stephen O. Friend
Robert W. Hausslein
Assignee (at issue)
Hyperion Catalysis International
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.