Granted Patent
Utility
US 5,633,099 · App. 08/461,419
Carbonate compounds, non-aqueous electrolytic solutions and batteries comprising non-aqueous electrolytic solutions
Inventors:
Keiichi Yokoyama, Akio Hiwara, Shigeru Fujita, Atsuo Omaru
Patented Case
View Patent ↗
Granted: May 27, 1997
Filed: Jun 5, 1995
Inventors
Keiichi Yokoyama
Akio Hiwara
Shigeru Fujita
Atsuo Omaru
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.