Granted Patent
Utility
US 6,001,497 · App. 09/120,461
Overcharge preventing device
Inventor:
Tadashi Okutoh
Patented Case
View Patent ↗
Granted: Dec 14, 1999
Filed: Jul 26, 1998
Inventor
Tadashi Okutoh
Assignee (at issue)
Nippon Moli Energy Corp.
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.