Granted Patent
Utility
US 5,171,647 · App. 07/624,953
Hydrogen containment cover assembly for sealing the cell can of a rechargeable electrochemical hydrogen storage cell
Inventors:
Kevin Dean, Arthur Holland, Herbert C. Ovshinsky, Michael A. Fetcenko, Srinivasan Venkatesan, Subnash Dhar
Patented Case
View Patent ↗
Granted: Dec 15, 1992
Filed: Dec 10, 1990
Inventors
Kevin Dean
Arthur Holland
Herbert C. Ovshinsky
Michael A. Fetcenko
Srinivasan Venkatesan
Subnash Dhar
Assignee (at issue)
Ovonic Battery Company, 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.