Granted Patent
Utility
US 5,679,482 · App. 08/542,474
Fuel cell incorporating novel ion-conducting membrane
Inventors:
Scott G. Ehrenberg, Joseph M. Serpico, Gary Wnek, Jeffrey N. Rider
Patented Case
View Patent ↗
Granted: Oct 21, 1997
Filed: Oct 6, 1995
Inventors
Scott G. Ehrenberg
Joseph M. Serpico
Gary Wnek
Jeffrey N. Rider
Assignee (at issue)
Dais Corporation
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.