Granted Patent
Utility
US 5,135,589 · App. 07/509,524
Metastable hydrogen storage alloy material
Inventors:
Michael A. Fetcenko, Stanford R. Ovshinsky
Patented Case
View Patent ↗
Granted: Aug 4, 1992
Filed: Apr 16, 1990
Inventors
Michael A. Fetcenko
Stanford R. Ovshinsky
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.