Granted Patent
Utility
US 6,197,448 · App. 08/991,027
Hydrogen storage alloy
Inventors:
Mark Gaydos, Weifang Luo
Patented Case
View Patent ↗
Granted: Mar 6, 2001
Filed: Dec 15, 1997
Inventors
Mark Gaydos
Weifang Luo
Assignee (at issue)
Duracell 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.