Granted Patent
Utility
US 4,430,391 · App. 06/399,891
Fuel cell cathode
Inventors:
Stanford R. Ovshinsky, Krishna Sapru, Srinivasan Venkatesan
Patented Case
View Patent ↗
Granted: Feb 7, 1984
Filed: Jul 19, 1982
Inventors
Stanford R. Ovshinsky
Krishna Sapru
Srinivasan Venkatesan
Assignee (at issue)
Energy Conversion Devices, 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.