Granted Patent
Utility
US 5,659,062 · App. 08/480,941
Non-aqueous electrolytic solutions and batteries comprising non-aqueous electrolytic solutions
Inventors:
Keiichi Yokoyama, Akio Hiwara
Patented Case
View Patent ↗
Granted: Aug 19, 1997
Filed: Jun 7, 1995
Inventors
Keiichi Yokoyama
Akio Hiwara
Assignees (at issue)
Mitsui Petrochemical Industries, Ltd.
SONY GROUP CORPORATION
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.