Granted Patent
Utility
US 5,795,668 · App. 08/339,167
Fuel cell incorporating a reinforced membrane
Inventor:
Shoibal Banerjee
Patented Case
View Patent ↗
Granted: Aug 18, 1998
Filed: Nov 10, 1994
Inventor
Shoibal Banerjee
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.